import { createAgentLifecycle } from "./agent-lifecycle.js";
import fs from "node:fs/promises";
import { readFileSync } from "node:fs";
import { createRequire } from "node:module";
import path from "node:path";
import { fileURLToPath } from "node:url";
import { readPaperclipSkillSyncPreference, writePaperclipSkillSyncPreference } from "@paperclipai/adapter-utils/server-utils";
import { and, desc, eq, ne } from "drizzle-orm";
import type { Db } from "@paperclipai/db";
import { activityLog, agents, builtInManagedResources, companies, issueThreadInteractions, issues, routines, routineTriggers } from "@paperclipai/db";
import { agentHarnessType, agentRunner, syncRoutineVariablesWithTemplate, type AgentRunnerChoice } from "@paperclipai/shared";
import type { Agent, Approval, CompanySkill, PermissionKey, Routine, RoutineTrigger, RoutineVariable } from "@paperclipai/shared";
import { conflict, HttpError, notFound, unprocessable } from "../errors.js";
import { logActivity } from "./activity-log.js";
import { adoptAgentFiles, agentFilePath, fileHash, readAgentFile, snapshotAgentFiles } from "./agent-file-store.js";
import { assertInstructionPathSafe, instructionBytes, materializeInstructionBytes } from "./agent-instruction-files.js";
import { agentInstructionRevisionService } from "./agent-instruction-revisions.js";
import type { AuthorizationActor } from "./authorization.js";
import { agentInstructionsBundleMode, agentInstructionsService } from "./agent-instructions.js";
import { agentService } from "./agents.js";
import { resolveNewAgentRunnerForCompany } from "./agent-runner-selection.js";
import { approvalService } from "./approvals.js";
import {
  readBuiltInAgentMarker,
  withBuiltInAgentMarker,
} from "../lib/built-in-agent-metadata.js";
import { companySkillService } from "./company-skills.js";
import { routineService } from "./routines.js";
import { accessService } from "./access.js";
import { listAdapterModels } from "../adapters/registry.js";
import {
  resourceStatus,
  stableJson,
  stockHash,
  type ManagedResourceStockStatus,
} from "./managed-resource-drift.js";

export type BuiltInAgentStatus = "not_provisioned" | "pending_approval" | "needs_setup" | "ready" | "paused";

export interface BuiltInAgentDefinition {
  key: string;
  displayName: string;
  featureKeys: string[];
  shortPurpose: string;
  defaultInstructions: string;
  defaultRole: string;
  defaultTitle?: string | null;
  defaultIcon?: string | null;
  defaultPermissions?: Record<string, unknown>;
  defaultStatus?: "idle" | "paused";
  defaultManager?: "single_root_agent" | null;
  allowedAdapterTypes?: string[];
  defaultAdapterType?: string;
  defaultAdapterConfig?: Record<string, unknown>;
  defaultBudgetMonthlyCents?: number;
  defaultRuntimeConfig?: Record<string, unknown>;
  bundle?: BuiltInAgentBundleDefinition;
}

export interface BuiltInAgentState {
  definition: BuiltInAgentDefinition;
  status: BuiltInAgentStatus;
  agentId: string | null;
  agent: Agent | null;
  pauseReason: string | null;
  resources: BuiltInManagedResourceState[];
  approval?: Approval | null;
}

export interface BuiltInAgentProvisionInput {
  runner?: AgentRunnerChoice;
  adapterType?: string;
  adapterConfig?: Record<string, unknown>;
  budgetMonthlyCents?: number;
}

export interface BuiltInAgentProvisionActor {
  requestedByAgentId?: string | null;
  requestedByUserId?: string | null;
}

export interface BuiltInAgentProvisionResult {
  state: BuiltInAgentState;
  approval: Approval | null;
}

export type BuiltInManagedResourceKind = "instructions" | "skill" | "routine";
export type BuiltInManagedResourceStockStatus = ManagedResourceStockStatus;

export interface BuiltInManagedResourceState {
  resourceKind: BuiltInManagedResourceKind;
  resourceKey: string;
  resourceId: string | null;
  stockVersion: string;
  stockHash: string;
  currentHash: string | null;
  stockStatus: BuiltInManagedResourceStockStatus;
  updateAvailable: boolean;
  resetAvailable: boolean;
  changedFiles?: string[];
  scheduleEnabled?: boolean;
  pendingUpdateInteractionId?: string | null;
  pendingUpdateIssueId?: string | null;
  pendingUpdateIssueIdentifier?: string | null;
}

export interface BuiltInAgentBundleDefinition {
  stockVersion: string;
  instructions: {
    entryFile: string;
    files: Record<string, string>;
  };
  skill: {
    skillKey: string;
    displayName: string;
    slug: string;
    canonicalKey: string;
    files: Record<string, string>;
  };
  routine: {
    routineKey: string;
    title: string;
    description: string;
    status: "active" | "paused";
    priority: "critical" | "high" | "medium" | "low";
    concurrencyPolicy: "always_enqueue" | "coalesce_if_active" | "skip_if_active";
    catchUpPolicy: "enqueue_missed_with_cap" | "skip_missed";
    variables: RoutineVariable[];
    triggers: Array<{
      kind: "schedule";
      label: string | null;
      enabled: boolean;
      cronExpression: string;
      timezone: string;
    }>;
  };
}

export interface RequiredBuiltInAgentWarning {
  code: "built_in_agent_paused";
  key: string;
  agentId: string;
  message: string;
  pauseReason: string | null;
}

export interface RequiredBuiltInAgent {
  definition: BuiltInAgentDefinition;
  agent: Agent;
  warning: RequiredBuiltInAgentWarning | null;
}

const BUILT_IN_AGENT_KEY_PATTERN = /^[a-z][a-z0-9_-]*$/;

const moduleDir = path.dirname(fileURLToPath(import.meta.url));
const require = createRequire(import.meta.url);
const BUILT_INS_DIR = path.resolve(moduleDir, "../built-ins/agents");
const SOURCE_BUILT_INS_DIR = path.resolve(moduleDir, "../../src/built-ins/agents");

const FALLBACK_REFLECTION_COACH_INSTRUCTIONS = [
  "# Reflection Coach",
  "",
  "You are Paperclip's built-in Reflection Coach.",
  "Review recent agent execution records, identify evidence-backed improvement patterns, and propose the smallest durable instruction, skill, or tool-description change.",
  "Do not apply changes in the same run. Present a reviewable diff and wait for the required Paperclip issue-thread approval before any follow-up applies it.",
  "",
].join("\n");

const FALLBACK_REFLECTION_COACH_ROUTINE = [
  "Review recent agent work for coaching opportunities.",
  "",
  "Select recent target agents, inspect their work history and current instructions, then propose small, review-gated improvements that would prevent repeated misses.",
  "",
].join("\n");

const FALLBACK_REFLECTION_COACH_SKILL = [
  "---",
  "name: reflection-coach",
  "description: Reflect on another agent's recent execution record and propose the smallest review-gated improvement.",
  "key: paperclipai/bundled/paperclip-operations/reflection-coach",
  "---",
  "",
  "# Reflection Coach",
  "",
  "Review another agent's recent execution record, name evidence-backed patterns, and propose the smallest durable improvement as a reviewable diff. Do not hot-swap instructions or skills in the same run.",
  "",
].join("\n");

const FALLBACK_SUMMARIZER_INSTRUCTIONS = [
  "You are Summarizer, a built-in reporting agent at Paperclip.",
  "",
  "Turn the current state of a Paperclip scope (project, workspaces overview, project workspace, or execution workspace) into a short, honest, human-readable Markdown summary and write it back to that scope's summary slot as a new revision. Use the `summarize-status` skill as your operating procedure.",
  "",
  "Read-and-report only: never change issues, workspaces, or code. Cite issue identifiers, never fabricate status, keep every read company-scoped, and run on the low-cost model profile lane by default.",
  "",
].join("\n");

const FALLBACK_SUMMARIZER_ROUTINE = [
  "Regenerate summary slots whose scope has changed since their last revision.",
  "",
  "Paused by default; spends no tokens until an operator enables the schedule or runs it manually. Read-and-report only — the only write is the summary revision.",
  "",
].join("\n");

const FALLBACK_SUMMARIZER_SKILL = [
  "---",
  "name: summarize-status",
  "description: Write a short, colloquial summary for a Paperclip summary slot: open with the 1–3 specific, concrete actions the reader needs to take right now to unblock the work, then a brief plain-language status, streaming progress as it works.",
  "key: paperclipai/bundled/paperclip-operations/summarize-status",
  "---",
  "",
  "# Summarize status",
  "",
  "Turn a Paperclip scope's current state into a short, colloquial Markdown summary and write it back to the scope's summary slot. Open with the 1–3 specific, concrete, actionable items the reader should do right now to unblock the work — each saying what to do and why it's the thing holding up progress, with an inline link — then a brief plain-prose status of where things stand, written for a reader who has not memorized issue ids or threads. Read whatever issues you need to understand the state, then focus on what's most important; never a task list or a dump of issue links. If genuinely nothing needs the reader, say so plainly in one line and name the next thing worth watching. Post the first `STATUS:` line immediately from the first task in context, keep streaming `STATUS:` lines while working, and emit the final Markdown between the summary-draft sentinels before the slot write. Read-and-report only; never fabricate status.",
  "",
].join("\n");

const warnedBuiltInTextFallbacks = new Set<string>();
const warnedBuiltInTextReadErrors = new Set<string>();

function resolvePackageRoot(packageName: string) {
  try {
    return path.dirname(require.resolve(`${packageName}/package.json`));
  } catch {
    return null;
  }
}

export function readBuiltInTextWithFallback(
  label: string,
  candidatePaths: string[],
  fallbackText: string,
) {
  const attemptedPaths = candidatePaths.filter((candidatePath) => candidatePath.trim().length > 0);
  for (const candidatePath of attemptedPaths) {
    try {
      return readFileSync(candidatePath, "utf8");
    } catch (error) {
      const code = (error as NodeJS.ErrnoException).code;
      if (code !== "ENOENT") {
        const codeLabel = code || String(error);
        const warningKey = [label, candidatePath, codeLabel].join(":");
        if (!warnedBuiltInTextReadErrors.has(warningKey)) {
          warnedBuiltInTextReadErrors.add(warningKey);
          console.warn(
            "[paperclip] Built-in agent asset " + label + " read error on " + candidatePath + ": " + codeLabel,
          );
        }
      }
      // Try every known runtime/source path before falling back to compiled text.
    }
  }

  if (!warnedBuiltInTextFallbacks.has(label)) {
    warnedBuiltInTextFallbacks.add(label);
    console.warn(
      `[paperclip] Built-in agent asset ${label} was not readable; using bundled fallback text. `
      + `Checked: ${attemptedPaths.join(", ")}`,
    );
  }
  return fallbackText;
}

function readBuiltInText(relativePath: string, fallbackText: string) {
  return readBuiltInTextWithFallback(
    relativePath,
    [path.join(BUILT_INS_DIR, relativePath), path.join(SOURCE_BUILT_INS_DIR, relativePath)],
    fallbackText,
  );
}

const skillsCatalogRoot = resolvePackageRoot("@paperclipai/skills-catalog");
const REFLECTION_COACH_INSTRUCTIONS = readBuiltInText("reflection-coach/AGENTS.md", FALLBACK_REFLECTION_COACH_INSTRUCTIONS);
const REFLECTION_COACH_ROUTINE = readBuiltInText(
  "reflection-coach/routines/recent-agent-reflection.md",
  FALLBACK_REFLECTION_COACH_ROUTINE,
);
const REFLECTION_COACH_SKILL = readBuiltInTextWithFallback(
  "reflection-coach/SKILL.md",
  [
    path.resolve(
      moduleDir,
      "../../../packages/skills-catalog/catalog/bundled/paperclip-operations/reflection-coach/SKILL.md",
    ),
    ...(skillsCatalogRoot
      ? [path.join(skillsCatalogRoot, "catalog/bundled/paperclip-operations/reflection-coach/SKILL.md")]
      : []),
  ],
  FALLBACK_REFLECTION_COACH_SKILL,
);

const SUMMARIZER_INSTRUCTIONS = readBuiltInText("summarizer/AGENTS.md", FALLBACK_SUMMARIZER_INSTRUCTIONS);
const SUMMARIZER_ROUTINE = readBuiltInText(
  "summarizer/routines/refresh-stale-summaries.md",
  FALLBACK_SUMMARIZER_ROUTINE,
);
const SUMMARIZER_SKILL = readBuiltInTextWithFallback(
  "summarizer/SKILL.md",
  [
    path.resolve(
      moduleDir,
      "../../../packages/skills-catalog/catalog/bundled/paperclip-operations/summarize-status/SKILL.md",
    ),
    ...(skillsCatalogRoot
      ? [path.join(skillsCatalogRoot, "catalog/bundled/paperclip-operations/summarize-status/SKILL.md")]
      : []),
  ],
  FALLBACK_SUMMARIZER_SKILL,
);

const DEFINITIONS = validateBuiltInAgentDefinitions([
  {
    key: "briefs",
    displayName: "Briefs Agent",
    featureKeys: ["briefs"],
    shortPurpose: "Prepares concise operational briefs for the board and agent company.",
    defaultInstructions:
      "You are Paperclip's built-in Briefs agent. Produce concise, sourced operational briefs that help the board understand current company work, risks, and next actions.",
    defaultRole: "general",
    allowedAdapterTypes: ["codex_local", "claude_local", "gemini_local", "opencode_local", "process"],
    defaultBudgetMonthlyCents: 0,
  },
  {
    key: "learning",
    displayName: "Learning Agent",
    featureKeys: ["learning"],
    shortPurpose: "Maintains reusable company learning from completed work and recurring patterns.",
    defaultInstructions:
      "You are Paperclip's built-in Learning agent. Extract durable lessons from completed work, preserve useful patterns, and keep learning artifacts grounded in source context.",
    defaultRole: "general",
    allowedAdapterTypes: ["codex_local", "claude_local", "gemini_local", "opencode_local", "process"],
    defaultBudgetMonthlyCents: 0,
  },
  {
    key: "reflection-coach",
    displayName: "Reflection Coach",
    featureKeys: ["reflection-coach"],
    shortPurpose:
      "Runs evidence-backed reflection loops on recent agent work, proposes small instruction and skill improvements, and requests approval before changes are applied.",
    defaultInstructions: REFLECTION_COACH_INSTRUCTIONS,
    defaultRole: "general",
    defaultTitle: "Reflection Coach",
    defaultIcon: "eye",
    defaultPermissions: {
      canCreateAgents: false,
      canCreateSkills: false,
      builtInMutationPolicy: {
        requiresDisplayedDiff: true,
        requiresAcceptedTaskInteraction: true,
        applyInSeparateFollowUpRun: true,
      },
    },
    defaultStatus: "paused",
    defaultManager: "single_root_agent",
    allowedAdapterTypes: ["claude_local", "codex_local", "gemini_local", "opencode_local", "process"],
    defaultBudgetMonthlyCents: 0,
    bundle: {
      stockVersion: "2026-07-08",
      instructions: {
        entryFile: "AGENTS.md",
        files: {
          "AGENTS.md": REFLECTION_COACH_INSTRUCTIONS,
        },
      },
      skill: {
        skillKey: "reflection-coach",
        displayName: "Reflection Coach",
        slug: "reflection-coach",
        canonicalKey: "paperclipai/bundled/paperclip-operations/reflection-coach",
        files: {
          "reflection-coach/SKILL.md": REFLECTION_COACH_SKILL,
        },
      },
      routine: {
        routineKey: "recent-agent-reflection",
        title: "Review recent agent trajectories for coaching proposals",
        description: REFLECTION_COACH_ROUTINE,
        status: "paused",
        priority: "medium",
        concurrencyPolicy: "coalesce_if_active",
        catchUpPolicy: "skip_missed",
        variables: [
          { name: "lookbackDays", label: "Lookback days", type: "number", defaultValue: 7, required: true, options: [] },
          { name: "maxTargetAgents", label: "Max target agents", type: "number", defaultValue: 8, required: true, options: [] },
          {
            name: "targetAgentMode",
            label: "Target agent mode",
            type: "select",
            defaultValue: "recent_active",
            required: true,
            options: ["recent_active", "recent_blocked", "recent_completed"],
          },
          { name: "excludeAgentIds", label: "Excluded agent ids", type: "text", defaultValue: "", required: false, options: [] },
        ],
        triggers: [
          {
            kind: "schedule",
            label: "Weekly reflection review",
            enabled: false,
            cronExpression: "0 9 * * 1",
            timezone: "UTC",
          },
        ],
      },
    },
  },
  {
    key: "summarizer",
    displayName: "Summarizer",
    featureKeys: ["summarizer"],
    shortPurpose:
      "Writes short, human-readable Markdown status summaries into project, workspaces-overview, project-workspace, and execution-workspace summary slots on demand.",
    defaultInstructions: SUMMARIZER_INSTRUCTIONS,
    defaultRole: "general",
    defaultTitle: "Summarizer",
    defaultIcon: "sparkles",
    defaultPermissions: {
      canCreateAgents: false,
      canCreateSkills: false,
    },
    defaultStatus: "paused",
    defaultManager: "single_root_agent",
    allowedAdapterTypes: ["claude_local", "codex_local", "gemini_local", "opencode_local", "process"],
    defaultAdapterType: "claude_local",
    defaultAdapterConfig: {
      model: "claude-haiku-4-5",
    },
    defaultBudgetMonthlyCents: 0,
    bundle: {
      stockVersion: "2026-08-02",
      instructions: {
        entryFile: "AGENTS.md",
        files: {
          "AGENTS.md": SUMMARIZER_INSTRUCTIONS,
        },
      },
      skill: {
        skillKey: "summarize-status",
        displayName: "Summarize status",
        slug: "summarize-status",
        canonicalKey: "paperclipai/bundled/paperclip-operations/summarize-status",
        files: {
          "summarize-status/SKILL.md": SUMMARIZER_SKILL,
        },
      },
      routine: {
        routineKey: "refresh-stale-summaries",
        title: "Refresh stale summary slots",
        description: SUMMARIZER_ROUTINE,
        status: "paused",
        priority: "medium",
        concurrencyPolicy: "coalesce_if_active",
        catchUpPolicy: "skip_missed",
        variables: [
          { name: "staleAfterHours", label: "Refresh slots older than (hours)", type: "number", defaultValue: 24, required: true, options: [] },
          { name: "maxSlots", label: "Max slots to refresh per run", type: "number", defaultValue: 10, required: true, options: [] },
          {
            name: "scopeKinds",
            label: "Scope kinds to include",
            type: "select",
            defaultValue: "all",
            required: true,
            options: ["all", "project", "workspaces_overview", "project_workspace", "execution_workspace"],
          },
        ],
        triggers: [
          {
            kind: "schedule",
            label: "Daily stale-summary refresh",
            enabled: false,
            cronExpression: "0 8 * * *",
            timezone: "UTC",
          },
        ],
      },
    },
  },
]);

const DEFINITIONS_BY_KEY = new Map(DEFINITIONS.map((definition) => [definition.key, definition]));

// Bundled built-in agents that should be provisioned automatically when a
// company is created (and re-ensured on startup reconcile). Empty by default so
// a new user starts clean — the Reflection Coach and Summarizer are opt-in, not
// seeded. Add a definition key here to restore automatic provisioning.
const AUTO_PROVISION_ON_COMPANY_CREATE_KEYS = new Set<string>([]);

const ROOT_AGENT_DEFAULT_CHANGE_GRANTS: PermissionKey[] = ["agents:configure", "skills:create"];
const BUILT_IN_AGENT_DEFAULT_GRANTS: Record<string, PermissionKey[]> = {
  "reflection-coach": ["agents:suggest-changes", "skills:suggest-changes"],
};

function isPlainRecord(value: unknown): value is Record<string, unknown> {
  return typeof value === "object" && value !== null && !Array.isArray(value);
}

function nonEmptyString(value: unknown) {
  return typeof value === "string" && value.trim().length > 0;
}

function uniqueNonEmptyStrings(values: string[]) {
  const seen = new Set<string>();
  const result: string[] = [];
  for (const value of values) {
    const normalized = value.trim();
    if (!normalized || seen.has(normalized)) continue;
    seen.add(normalized);
    result.push(normalized);
  }
  return result;
}

function changedFileList(currentFiles: Record<string, string | null>, stockFiles: Record<string, string>) {
  const paths = new Set([...Object.keys(currentFiles), ...Object.keys(stockFiles)]);
  return [...paths]
    .filter((filePath) => (currentFiles[filePath] ?? null) !== (stockFiles[filePath] ?? null))
    .sort((left, right) => left.localeCompare(right));
}

function stockState(input: {
  resourceKind: BuiltInManagedResourceKind;
  resourceKey: string;
  resourceId: string | null;
  stockVersion: string;
  latestStockHash: string;
  currentHash: string | null;
  bindingStockHash: string | null;
  changedFiles?: string[];
  scheduleEnabled?: boolean;
  pendingUpdateInteractionId?: string | null;
  pendingUpdateIssueId?: string | null;
  pendingUpdateIssueIdentifier?: string | null;
}): BuiltInManagedResourceState {
  const status = resourceStatus({
    resourceId: input.resourceId,
    currentHash: input.currentHash,
    bindingStockHash: input.bindingStockHash,
    latestStockHash: input.latestStockHash,
  });
  return {
    resourceKind: input.resourceKind,
    resourceKey: input.resourceKey,
    resourceId: input.resourceId,
    stockVersion: input.stockVersion,
    stockHash: input.latestStockHash,
    currentHash: input.currentHash,
    stockStatus: status,
    updateAvailable: status === "stock_update_available" || status === "operator_modified",
    resetAvailable: status !== "stock_current",
    ...(input.changedFiles && input.changedFiles.length > 0 ? { changedFiles: input.changedFiles } : {}),
    ...(input.scheduleEnabled !== undefined ? { scheduleEnabled: input.scheduleEnabled } : {}),
    ...(input.pendingUpdateInteractionId !== undefined
      ? { pendingUpdateInteractionId: input.pendingUpdateInteractionId }
      : {}),
    ...(input.pendingUpdateIssueId !== undefined ? { pendingUpdateIssueId: input.pendingUpdateIssueId } : {}),
    ...(input.pendingUpdateIssueIdentifier !== undefined
      ? { pendingUpdateIssueIdentifier: input.pendingUpdateIssueIdentifier }
      : {}),
  };
}

export function validateBuiltInAgentDefinitions(definitions: BuiltInAgentDefinition[]) {
  const seenKeys = new Set<string>();
  for (const definition of definitions) {
    if (!BUILT_IN_AGENT_KEY_PATTERN.test(definition.key)) {
      throw new Error(`Invalid built-in agent key: ${definition.key}`);
    }
    if (seenKeys.has(definition.key)) {
      throw new Error(`Duplicate built-in agent key: ${definition.key}`);
    }
    seenKeys.add(definition.key);
    if (!definition.displayName.trim()) {
      throw new Error(`Built-in agent ${definition.key} requires a displayName`);
    }
    if (!definition.shortPurpose.trim()) {
      throw new Error(`Built-in agent ${definition.key} requires a shortPurpose`);
    }
    if (!definition.defaultInstructions.trim()) {
      throw new Error(`Built-in agent ${definition.key} requires defaultInstructions`);
    }
    if (!definition.defaultRole.trim()) {
      throw new Error(`Built-in agent ${definition.key} requires a defaultRole`);
    }
    if (uniqueNonEmptyStrings(definition.featureKeys).length !== definition.featureKeys.length) {
      throw new Error(`Built-in agent ${definition.key} featureKeys must be unique non-empty strings`);
    }
    if (definition.featureKeys.length === 0) {
      throw new Error(`Built-in agent ${definition.key} requires at least one featureKey`);
    }
    if (
      definition.allowedAdapterTypes
      && uniqueNonEmptyStrings(definition.allowedAdapterTypes).length !== definition.allowedAdapterTypes.length
    ) {
      throw new Error(`Built-in agent ${definition.key} allowedAdapterTypes must be unique non-empty strings`);
    }
    if (
      definition.defaultAdapterType
      && definition.allowedAdapterTypes
      && !definition.allowedAdapterTypes.includes(definition.defaultAdapterType)
    ) {
      throw new Error(`Built-in agent ${definition.key} defaultAdapterType must be allowed`);
    }
    if (
      definition.defaultBudgetMonthlyCents !== undefined
      && (!Number.isInteger(definition.defaultBudgetMonthlyCents) || definition.defaultBudgetMonthlyCents < 0)
    ) {
      throw new Error(`Built-in agent ${definition.key} defaultBudgetMonthlyCents must be a non-negative integer`);
    }
    if (definition.bundle) {
      if (!definition.bundle.stockVersion.trim()) {
        throw new Error(`Built-in agent ${definition.key} bundle requires a stockVersion`);
      }
      if (!definition.bundle.instructions.files[definition.bundle.instructions.entryFile]) {
        throw new Error(`Built-in agent ${definition.key} bundle instructions require the entry file`);
      }
      if (!definition.bundle.skill.files[`${definition.bundle.skill.slug}/SKILL.md`]) {
        throw new Error(`Built-in agent ${definition.key} bundle skill requires SKILL.md`);
      }
      if (!definition.bundle.routine.description.trim()) {
        throw new Error(`Built-in agent ${definition.key} bundle routine requires a description`);
      }
    }
  }
  return definitions.map((definition) => ({
    ...definition,
    featureKeys: [...definition.featureKeys],
    allowedAdapterTypes: definition.allowedAdapterTypes ? [...definition.allowedAdapterTypes] : undefined,
    defaultAdapterConfig: definition.defaultAdapterConfig ? { ...definition.defaultAdapterConfig } : undefined,
    bundle: definition.bundle ? {
      ...definition.bundle,
      instructions: {
        ...definition.bundle.instructions,
        files: { ...definition.bundle.instructions.files },
      },
      skill: {
        ...definition.bundle.skill,
        files: { ...definition.bundle.skill.files },
      },
      routine: {
        ...definition.bundle.routine,
        variables: definition.bundle.routine.variables.map((variable) => ({ ...variable, options: [...variable.options] })),
        triggers: definition.bundle.routine.triggers.map((trigger) => ({ ...trigger })),
      },
    } : undefined,
  }));
}

export function listBuiltInAgentDefinitions() {
  return DEFINITIONS.map((definition) => ({
    ...definition,
    featureKeys: [...definition.featureKeys],
    allowedAdapterTypes: definition.allowedAdapterTypes ? [...definition.allowedAdapterTypes] : undefined,
    defaultAdapterConfig: definition.defaultAdapterConfig ? { ...definition.defaultAdapterConfig } : undefined,
  }));
}

export function getBuiltInAgentDefinition(key: string) {
  return DEFINITIONS_BY_KEY.get(key) ?? null;
}

export function requireBuiltInAgentDefinition(key: string) {
  const definition = getBuiltInAgentDefinition(key);
  if (!definition) throw notFound(`Built-in agent definition not found: ${key}`);
  return definition;
}

function defaultAdapterType(definition: BuiltInAgentDefinition) {
  return definition.defaultAdapterType ?? definition.allowedAdapterTypes?.[0] ?? "process";
}

function normalizeAdapterType(value: unknown) {
  return typeof value === "string" && value.trim().length > 0 ? value.trim() : null;
}

function selectPreferredAdapterType(
  definition: BuiltInAgentDefinition,
  usage: Array<{ adapterType: string; count: number }>,
) {
  const fallback = defaultAdapterType(definition);
  const preference = definition.allowedAdapterTypes ?? [];
  if (preference.length === 0) return fallback;

  const rank = new Map(preference.map((adapterType, index) => [adapterType, index]));
  let selected: { adapterType: string; count: number; rank: number } | null = null;
  for (const entry of usage) {
    const adapterRank = rank.get(entry.adapterType);
    if (adapterRank === undefined) continue;
    if (!selected || entry.count > selected.count || (entry.count === selected.count && adapterRank < selected.rank)) {
      selected = { ...entry, rank: adapterRank };
    }
  }
  return selected?.adapterType ?? fallback;
}

function assertAdapterAllowed(definition: BuiltInAgentDefinition, adapterType: string, adapterConfig: Record<string, unknown> = {}) {
  if (definition.allowedAdapterTypes && !definition.allowedAdapterTypes.includes(agentHarnessType(adapterType, adapterConfig))) {
    throw unprocessable(`Adapter type ${adapterType} is not allowed for built-in agent ${definition.key}`, {
      code: "built_in_agent_adapter_not_allowed",
      key: definition.key,
      allowedAdapterTypes: definition.allowedAdapterTypes,
    });
  }
}

function hasCompleteAdapterConfig(adapterType: string, adapterConfig: unknown) {
  if (!isPlainRecord(adapterConfig)) return false;
  if (["process", "command"].includes(adapterType)) {
    return nonEmptyString(adapterConfig.command) || nonEmptyString(adapterConfig.script);
  }
  if (adapterType === "http") {
    return nonEmptyString(adapterConfig.url) || nonEmptyString(adapterConfig.endpoint) || nonEmptyString(adapterConfig.webhookUrl);
  }
  if (adapterType === "openclaw_gateway" || adapterType === "hermes_gateway") {
    return nonEmptyString(adapterConfig.baseUrl) || nonEmptyString(adapterConfig.url);
  }
  return nonEmptyString(adapterConfig.model);
}

export function deriveBuiltInAgentStatus(agent: Pick<Agent, "adapterType" | "adapterConfig" | "status" | "pausedAt"> & { metadata?: Agent["metadata"] } | null): BuiltInAgentStatus {
  if (!agent) return "not_provisioned";
  if (agent.status === "pending_approval") return "pending_approval";
  if (agent.status === "paused" || agent.pausedAt) return "paused";
  return agent.metadata?.paperclipBuiltInSetupRequired !== true && hasCompleteAdapterConfig(agent.adapterType, agent.adapterConfig) ? "ready" : "needs_setup";
}

function builtInMetadata(definition: BuiltInAgentDefinition, existing?: Record<string, unknown> | null) {
  return withBuiltInAgentMarker(existing, {
    key: definition.key,
    featureKeys: definition.featureKeys,
  });
}

function definitionPatch(definition: BuiltInAgentDefinition, input: BuiltInAgentProvisionInput = {}) {
  const adapterType = input.adapterType ?? defaultAdapterType(definition);
  assertAdapterAllowed(definition, adapterType, input.adapterConfig);
  return {
    runner: input.runner,
    name: definition.displayName,
    role: definition.defaultRole,
    title: definition.defaultTitle ?? null,
    icon: definition.defaultIcon ?? null,
    capabilities: definition.shortPurpose,
    adapterType,
    adapterConfig: input.adapterConfig ?? definition.defaultAdapterConfig ?? {},
    permissions: definition.defaultPermissions ?? {},
    budgetMonthlyCents: input.budgetMonthlyCents ?? definition.defaultBudgetMonthlyCents ?? 0,
  };
}

async function assertKnownBuiltInAgentModel(
  definition: BuiltInAgentDefinition,
  input: BuiltInAgentProvisionInput,
) {
  const adapterType = input.adapterType ?? defaultAdapterType(definition);
  const adapterConfig = input.adapterConfig ?? definition.defaultAdapterConfig ?? {};
  const model = typeof adapterConfig.model === "string" ? adapterConfig.model.trim() : "";
  if (!model || !hasCompleteAdapterConfig(adapterType, adapterConfig)) return;

  const models = await listAdapterModels(agentHarnessType(adapterType, adapterConfig));
  if (models.length === 0 || models.some((candidate) => candidate.id === model)) return;

  throw unprocessable(`Model "${model}" is not available for adapter ${adapterType}.`, {
    code: "built_in_agent_model_unknown",
    key: definition.key,
    adapterType,
    model,
    availableModelIds: models.map((candidate) => candidate.id),
  });
}

function builtInAgentNotConfiguredError(state: BuiltInAgentState) {
  return new HttpError(412, `Built-in agent is not configured: ${state.definition.key}`, {
    code: "built_in_agent_not_configured",
    key: state.definition.key,
    status: state.status,
    agentId: state.agentId,
    featureKeys: state.definition.featureKeys,
  });
}

function hasProvisionSetupInput(input: BuiltInAgentProvisionInput) {
  return input.adapterType !== undefined || input.adapterConfig !== undefined || input.runner !== undefined || input.budgetMonthlyCents !== undefined;
}

function rowIsBuiltInAgent(row: typeof agents.$inferSelect, key: string) {
  const marker = readBuiltInAgentMarker(row.metadata);
  return marker?.key === key;
}

// Partial unique index (migration 0192) that guarantees one active built-in
// agent per (company, marker key). A losing provisioning race raises this as a
// 23505; provision()/ensure() catch it and re-resolve to the winning row.
const BUILT_IN_AGENT_MARKER_UNIQUE_INDEX = "agents_company_built_in_agent_key_unique_idx";

function isBuiltInAgentMarkerConflict(error: unknown): boolean {
  const seen = new Set<unknown>();
  let current: unknown = error;
  while (typeof current === "object" && current !== null && !seen.has(current)) {
    seen.add(current);
    const maybe = current as { code?: string; constraint?: string; constraint_name?: string; cause?: unknown };
    const constraint = maybe.constraint ?? maybe.constraint_name;
    if (maybe.code === "23505" && constraint === BUILT_IN_AGENT_MARKER_UNIQUE_INDEX) {
      return true;
    }
    current = maybe.cause;
  }
  return false;
}

export function builtInAgentService(db: Db) {
  const agentSvc = agentService(db);
  const agentSvcLifecycle = createAgentLifecycle(db);
  const accessSvc = accessService(db);
  const approvalSvc = approvalService(db);
  const instructionsSvc = agentInstructionsService(db);
  const skillSvc = companySkillService(db);
  const routineSvc = routineService(db);

  async function findSingleRootManager(companyId: string) {
    const roots = await db
      .select()
      .from(agents)
      .where(and(eq(agents.companyId, companyId), ne(agents.status, "terminated")));
    const nonBuiltInRoots = roots.filter((agent) => !readBuiltInAgentMarker(agent.metadata) && !agent.reportsTo);
    return nonBuiltInRoots.length === 1 ? nonBuiltInRoots[0]!.id : null;
  }

  async function ensureAgentDefaultGrants(companyId: string, agentId: string, grantKeys: PermissionKey[]) {
    if (grantKeys.length === 0) return 0;
    await accessSvc.ensureMembership(companyId, "agent", agentId, "member", "active");
    let ensured = 0;
    for (const permissionKey of grantKeys) {
      await accessSvc.setPrincipalPermission(companyId, "agent", agentId, permissionKey, true, null);
      ensured += 1;
    }
    return ensured;
  }

  async function ensureBuiltInAgentDefaultGrants(agent: Agent, definition: BuiltInAgentDefinition) {
    if (agent.status === "pending_approval" || agent.status === "terminated") return 0;
    return ensureAgentDefaultGrants(
      agent.companyId,
      agent.id,
      BUILT_IN_AGENT_DEFAULT_GRANTS[definition.key] ?? [],
    );
  }

  async function ensureRootAgentDefaultChangeGrants(companyId: string) {
    const rows = await db
      .select()
      .from(agents)
      .where(and(eq(agents.companyId, companyId), ne(agents.status, "terminated")));
    const rootCeoRows = rows.filter((agent) =>
      !readBuiltInAgentMarker(agent.metadata) &&
      !agent.reportsTo &&
      agent.role.trim().toLowerCase() === "ceo" &&
      agent.status !== "pending_approval"
    );
    if (rootCeoRows.length !== 1) return 0;
    return ensureAgentDefaultGrants(companyId, rootCeoRows[0]!.id, ROOT_AGENT_DEFAULT_CHANGE_GRANTS);
  }

  async function ensureCompanyDefaultAgentGrants(companyId: string) {
    let ensured = await ensureRootAgentDefaultChangeGrants(companyId);
    for (const definition of DEFINITIONS) {
      const agent = await findSingleAgent(companyId, definition);
      if (!agent) continue;
      ensured += await ensureBuiltInAgentDefaultGrants(agent as Agent, definition);
    }
    return ensured;
  }

  async function defaultProvisionInput(companyId: string, definition: BuiltInAgentDefinition, input: BuiltInAgentProvisionInput) {
    if (input.adapterType || input.adapterConfig) return input;
    if (definition.defaultAdapterType || definition.defaultAdapterConfig) {
      return {
        ...input,
        adapterType: definition.defaultAdapterType,
        adapterConfig: definition.defaultAdapterConfig ? { ...definition.defaultAdapterConfig } : undefined,
      };
    }
    if (!definition.bundle) return input;
    const rows = await db
      .select({
        adapterType: agents.adapterType,
        adapterConfig: agents.adapterConfig,
      })
      .from(agents)
      .where(and(eq(agents.companyId, companyId), ne(agents.status, "terminated")));
    const candidate = rows.find((row) =>
      definition.allowedAdapterTypes?.includes(agentHarnessType(row.adapterType, row.adapterConfig))
      && hasCompleteAdapterConfig(row.adapterType, row.adapterConfig)
    );
    if (!candidate) return input;
    return {
      ...input,
      adapterType: agentHarnessType(candidate.adapterType, candidate.adapterConfig),
      adapterConfig: {},
    };
  }

  async function getManagedResourceBinding(
    companyId: string,
    bundleKey: string,
    resourceKind: BuiltInManagedResourceKind,
    resourceKey: string,
  ) {
    return db
      .select()
      .from(builtInManagedResources)
      .where(and(
        eq(builtInManagedResources.companyId, companyId),
        eq(builtInManagedResources.bundleKey, bundleKey),
        eq(builtInManagedResources.resourceKind, resourceKind),
        eq(builtInManagedResources.resourceKey, resourceKey),
      ))
      .then((rows) => rows[0] ?? null);
  }

  async function upsertManagedResourceBinding(input: {
    companyId: string;
    bundleKey: string;
    resourceKind: BuiltInManagedResourceKind;
    resourceKey: string;
    resourceId: string;
    stockVersion: string;
    stockHash: string;
    defaultsJson: Record<string, unknown>;
  }, connection: Db | Parameters<Parameters<Db["transaction"]>[0]>[0] = db) {
    const now = new Date();
    return connection
      .insert(builtInManagedResources)
      .values(input)
      .onConflictDoUpdate({
        target: [
          builtInManagedResources.companyId,
          builtInManagedResources.bundleKey,
          builtInManagedResources.resourceKind,
          builtInManagedResources.resourceKey,
        ],
        set: {
          resourceId: input.resourceId,
          stockVersion: input.stockVersion,
          stockHash: input.stockHash,
          defaultsJson: input.defaultsJson,
          updatedAt: now,
        },
      })
      .returning()
      .then((rows) => rows[0] ?? null);
  }

  async function currentInstructionFiles(agent: Agent, bundle: BuiltInAgentBundleDefinition) {
    const currentFiles: Record<string, string | null> = {};
    for (const filePath of Object.keys(bundle.instructions.files)) {
      try {
        currentFiles[filePath] = (await instructionsSvc.readFile(agent, filePath)).content;
      } catch {
        currentFiles[filePath] = null;
      }
    }
    return currentFiles;
  }

  async function materializeInstructions(agent: Agent, definition: BuiltInAgentDefinition, mode: "reconcile" | "reset", actor?: AuthorizationActor) {
    const bundle = definition.bundle!;
    const stock = stockHash(bundle.instructions.files);
    const binding = await getManagedResourceBinding(agent.companyId, definition.key, "instructions", "AGENTS.md");
    // Stock operations also read the committed projection after interrupted writes.
    if (agentInstructionsBundleMode(agent) === "managed") {
      try { await agentInstructionRevisionService(db).materializeCurrent({ companyId: agent.companyId, agentId: agent.id }); }
      catch (error) { if (!(error instanceof HttpError && error.status === 404)) throw error; }
    }
    const currentFiles = await currentInstructionFiles(agent, bundle);
    const currentHash = Object.values(currentFiles).some((value) => value === null) ? null : stockHash(currentFiles);
    const currentState = stockState({
      resourceKind: "instructions",
      resourceKey: "AGENTS.md",
      resourceId: agent.id,
      stockVersion: bundle.stockVersion,
      latestStockHash: stock,
      currentHash,
      bindingStockHash: binding?.stockHash ?? null,
      changedFiles: changedFileList(currentFiles, bundle.instructions.files),
    });

    if (!actor && mode === "reconcile" && agentInstructionsBundleMode(agent) === "managed"
      && binding && (binding.stockHash !== stock || binding.defaultsJson.pendingInstructionsUpdate)) {
      const bindingWhere = and(eq(builtInManagedResources.companyId, agent.companyId),
        eq(builtInManagedResources.bundleKey, definition.key), eq(builtInManagedResources.resourceKind, "instructions"),
        eq(builtInManagedResources.resourceKey, "AGENTS.md"));
      const incoming = Object.fromEntries(Object.entries(bundle.instructions.files)
        .map(([file, content]) => [agentFilePath(file), instructionBytes(content)]));
      // Persist only the pending operation's baseline hashes before touching
      // files. If a write or DB commit fails, the next reconciliation can accept
      // already-applied bytes and retry. This is not instruction revision history.
      const prepared = await db.transaction(async (tx) => {
        const [current] = await tx.select().from(agents).where(and(eq(agents.companyId, agent.companyId), eq(agents.id, agent.id))).for("update");
        if (!current) throw notFound("Built-in agent not found");
        if (agentInstructionsBundleMode(current) !== "managed") return false;
        const root = await adoptAgentFiles(tx, current);
        const [latest] = await tx.select().from(builtInManagedResources).where(bindingWhere);
        if (!latest) return false;
        const pending = latest.defaultsJson.pendingInstructionsUpdate as {
          stockHash?: string; baseHashes?: Record<string, string | null>; nextHashes?: Record<string, string | null>;
        } | undefined;
        if (pending?.stockHash === stock) return true;
        if (!pending && latest.stockHash === stock) return false;
        const previousPaths = latest.defaultsJson.files;
        if (!Array.isArray(previousPaths) || !previousPaths.every((file): file is string => typeof file === "string")) return false;
        const ownedPaths = new Set(previousPaths);
        if (pending) {
          // A newer release (or rollback) can supersede an interrupted update.
          // Recognize only the previous operation's baseline or intended bytes;
          // never mistake an intervening operator edit for partially applied stock.
          if (!pending.baseHashes || !pending.nextHashes) return false;
          for (const [file, baseHash] of Object.entries(pending.baseHashes)) {
            if (!(file in pending.nextHashes)) return false;
            const bytes = await readAgentFile(root, agentFilePath(file));
            const hash = bytes === null ? null : fileHash(bytes);
            if (hash !== baseHash && hash !== pending.nextHashes[file]) return false;
            ownedPaths.add(file);
          }
        } else {
          const previousFiles: Record<string, string | null> = {};
          for (const file of previousPaths) {
            try { previousFiles[file] = (await instructionsSvc.readFile(current, file)).content; }
            catch { previousFiles[file] = null; }
          }
          if (stockHash(previousFiles) !== latest.stockHash) return false;
        }
        await snapshotAgentFiles(root);
        const baseHashes: Record<string, string | null> = {};
        const nextHashes: Record<string, string | null> = {};
        for (const file of new Set([...ownedPaths, ...Object.keys(incoming)])) {
          const bytes = await readAgentFile(root, agentFilePath(file));
          // A newly declared stock path must not overwrite a personal file.
          if (!ownedPaths.has(file) && bytes !== null && !bytes.equals(incoming[file]!)) return false;
          baseHashes[file] = bytes === null ? null : fileHash(bytes);
          nextHashes[file] = incoming[file] ? fileHash(incoming[file]) : null;
        }
        await tx.update(builtInManagedResources).set({ defaultsJson: { ...latest.defaultsJson,
          pendingInstructionsUpdate: { stockHash: stock, baseHashes, nextHashes } }, updatedAt: new Date() }).where(bindingWhere);
        return true;
      });
      if (!prepared) return currentState;
      return db.transaction(async (tx) => {
        const [current] = await tx.select().from(agents).where(and(eq(agents.companyId, agent.companyId), eq(agents.id, agent.id))).for("update");
        if (!current) throw notFound("Built-in agent not found");
        if (agentInstructionsBundleMode(current) !== "managed") return currentState;
        const root = await adoptAgentFiles(tx, current);
        const [latest] = await tx.select().from(builtInManagedResources).where(bindingWhere);
        const pending = latest?.defaultsJson.pendingInstructionsUpdate as { stockHash?: string; baseHashes?: Record<string, string | null> } | undefined;
        if (pending?.stockHash !== stock || !pending.baseHashes) return currentState;
        await snapshotAgentFiles(root);
        // Preflight every changed or removed path before mutation; preserve any
        // operator edit made between preparation, failure, and this retry.
        for (const [file, baseHash] of Object.entries(pending.baseHashes)) {
          const bytes = await readAgentFile(root, agentFilePath(file));
          const hash = bytes === null ? null : fileHash(bytes);
          const nextHash = incoming[file] ? fileHash(incoming[file]) : null;
          if (hash !== baseHash && hash !== nextHash) return currentState;
        }
        for (const [file, bytes] of Object.entries(incoming)) await materializeInstructionBytes(root, file, bytes);
        for (const file of Object.keys(pending.baseHashes)) {
          if (!(file in incoming)) await fs.rm(await assertInstructionPathSafe(root, file), { force: true });
        }
        await upsertManagedResourceBinding({ companyId: agent.companyId, bundleKey: definition.key,
          resourceKind: "instructions", resourceKey: "AGENTS.md", resourceId: agent.id,
          stockVersion: bundle.stockVersion, stockHash: stock,
          defaultsJson: { entryFile: bundle.instructions.entryFile, files: Object.keys(bundle.instructions.files) },
        }, tx);
        await tx.insert(activityLog).values({ companyId: agent.companyId, actorType: "system", actorId: "built-in-reconcile",
          action: "agent.files_updated", entityType: "agent", entityId: agent.id,
          details: { source: "built-in-stock-update", bundleKey: definition.key, stockHash: stock } });
        return stockState({ resourceKind: "instructions", resourceKey: "AGENTS.md", resourceId: agent.id,
          stockVersion: bundle.stockVersion, latestStockHash: stock, currentHash: stock, bindingStockHash: stock });
      });
    }

    const shouldWrite =
      mode === "reset"
      || currentState.stockStatus === "missing"
      || currentState.stockStatus === "stock_update_available";
    if (!shouldWrite) {
      if (!binding && currentHash === stock) {
        await upsertManagedResourceBinding({
          companyId: agent.companyId,
          bundleKey: definition.key,
          resourceKind: "instructions",
          resourceKey: "AGENTS.md",
          resourceId: agent.id,
          stockVersion: bundle.stockVersion,
          stockHash: stock,
          defaultsJson: {
            entryFile: bundle.instructions.entryFile,
            files: Object.keys(bundle.instructions.files),
          },
        });
      }
      return currentState;
    }

    let adapterConfig: Record<string, unknown>;
    if (currentFiles[bundle.instructions.entryFile] !== null && currentFiles[bundle.instructions.entryFile] !== undefined) {
      if (!actor && mode === "reconcile") return currentState;
      if (!actor) throw unprocessable("Resetting existing instructions requires an authenticated operator", { code: "INSTRUCTION_IDENTITY_INVALID" });
      const revisions = agentInstructionRevisionService(db);
      const target = { companyId: agent.companyId, agentId: agent.id };
      const baseline = await revisions.readCurrent(target, actor);
      const receipt = await revisions.commit({ ...target, entryFile: bundle.instructions.entryFile,
        baseRevisionId: baseline?.revision.id ?? null, content: bundle.instructions.files[bundle.instructions.entryFile] ?? "",
        source: actor.type === "board" ? "board" : "api" }, actor);
      if (receipt.materialization === "pending") throw conflict("Instruction revision saved; retry reset to repair its disk copy", { revisionId: receipt.revision.id });
      const refreshed = await agentSvc.getById(agent.id);
      if (!refreshed) throw notFound("Built-in agent not found");
      for (const [file, content] of Object.entries(bundle.instructions.files)) {
        if (file !== bundle.instructions.entryFile) await instructionsSvc.writeFile(refreshed, file, content);
      }
      // Preserve personal files outside this built-in bundle's declared paths.
      adapterConfig = { ...refreshed.adapterConfig };
      delete adapterConfig.promptTemplate;
      delete adapterConfig.bootstrapPromptTemplate;
    } else {
      const materialized = await instructionsSvc.materializeManagedBundle(agent, bundle.instructions.files, {
        entryFile: bundle.instructions.entryFile,
        replaceExisting: false,
        clearLegacyPromptTemplate: true,
      });
      adapterConfig = materialized.adapterConfig;
    }
    const updated = await agentSvc.update(agent.id, {
      adapterConfig,
    }, {
      allowBuiltInAgentMetadata: true,
      recordRevision: { source: `built-in-bundle:${mode}:instructions` },
    });
    if (!updated) throw notFound("Built-in agent not found");
    await upsertManagedResourceBinding({
      companyId: agent.companyId,
      bundleKey: definition.key,
      resourceKind: "instructions",
      resourceKey: "AGENTS.md",
      resourceId: agent.id,
      stockVersion: bundle.stockVersion,
      stockHash: stock,
      defaultsJson: {
        entryFile: bundle.instructions.entryFile,
        files: Object.keys(bundle.instructions.files),
      },
    });
    return stockState({
      resourceKind: "instructions",
      resourceKey: "AGENTS.md",
      resourceId: agent.id,
      stockVersion: bundle.stockVersion,
      latestStockHash: stock,
      currentHash: stock,
      bindingStockHash: stock,
    });
  }

  async function getCurrentSkillFiles(companyId: string, skill: CompanySkill | null, bundle: BuiltInAgentBundleDefinition) {
    const currentFiles: Record<string, string | null> = {};
    const stockFiles = bundle.skill.files;
    for (const packagePath of Object.keys(stockFiles)) {
      const relativePath = packagePath.split("/").slice(1).join("/") || "SKILL.md";
      if (!skill) {
        currentFiles[packagePath] = null;
        continue;
      }
      if (relativePath === "SKILL.md") {
        currentFiles[packagePath] = skill.markdown;
        continue;
      }
      try {
        currentFiles[packagePath] = (await skillSvc.readFile(companyId, skill.id, relativePath))?.content ?? null;
      } catch {
        currentFiles[packagePath] = null;
      }
    }
    return currentFiles;
  }

  async function importBundledSkill(companyId: string, definition: BuiltInAgentDefinition) {
    const results = await skillSvc.importPackageFiles(companyId, definition.bundle!.skill.files, { onConflict: "replace" });
    const imported = results.find((result) => result.skill.key === definition.bundle!.skill.canonicalKey)?.skill
      ?? results[0]?.skill
      ?? await skillSvc.getByKey(companyId, definition.bundle!.skill.canonicalKey);
    if (!imported) throw notFound("Built-in bundled skill was not imported");
    return imported;
  }

  async function syncBundledSkillToAgent(agent: Agent, skill: CompanySkill) {
    const desired = readPaperclipSkillSyncPreference(agent.adapterConfig as Record<string, unknown>).desiredSkillEntries;
    const nextDesired = [
      ...desired.filter((entry) => entry.key !== skill.key),
      { key: skill.key, versionId: skill.currentVersionId ?? null },
    ];
    const adapterConfig = writePaperclipSkillSyncPreference(agent.adapterConfig as Record<string, unknown>, nextDesired);
    const updated = await agentSvc.update(agent.id, { adapterConfig }, {
      allowBuiltInAgentMetadata: true,
      recordRevision: { source: "built-in-bundle:skill-sync" },
    });
    if (!updated) throw notFound("Built-in agent not found");
    return updated as Agent;
  }

  async function materializeSkill(agent: Agent, definition: BuiltInAgentDefinition, mode: "reconcile" | "reset") {
    const bundle = definition.bundle!;
    const stock = stockHash(bundle.skill.files);
    const binding = await getManagedResourceBinding(agent.companyId, definition.key, "skill", bundle.skill.skillKey);
    const boundSkill = binding ? await skillSvc.getById(agent.companyId, binding.resourceId) : null;
    const existingByKey = await skillSvc.getByKey(agent.companyId, bundle.skill.canonicalKey);
    const skill = boundSkill ?? existingByKey;
    const currentFiles = await getCurrentSkillFiles(agent.companyId, skill, bundle);
    const currentHash = skill && Object.values(currentFiles).every((value) => value !== null)
      ? stockHash(currentFiles)
      : null;
    const currentState = stockState({
      resourceKind: "skill",
      resourceKey: bundle.skill.skillKey,
      resourceId: skill?.id ?? null,
      stockVersion: bundle.stockVersion,
      latestStockHash: stock,
      currentHash,
      bindingStockHash: binding?.stockHash ?? null,
      changedFiles: changedFileList(currentFiles, bundle.skill.files),
    });

    const shouldWrite =
      mode === "reset"
      || currentState.stockStatus === "missing"
      || currentState.stockStatus === "stock_update_available";
    const nextSkill = shouldWrite ? await importBundledSkill(agent.companyId, definition) : skill!;
    await upsertManagedResourceBinding({
      companyId: agent.companyId,
      bundleKey: definition.key,
      resourceKind: "skill",
      resourceKey: bundle.skill.skillKey,
      resourceId: nextSkill.id,
      stockVersion: bundle.stockVersion,
      stockHash: shouldWrite ? stock : binding?.stockHash ?? stock,
      defaultsJson: {
        canonicalKey: bundle.skill.canonicalKey,
        slug: bundle.skill.slug,
        files: Object.keys(bundle.skill.files),
      },
    });
    await syncBundledSkillToAgent(agent, nextSkill);
    return stockState({
      resourceKind: "skill",
      resourceKey: bundle.skill.skillKey,
      resourceId: nextSkill.id,
      stockVersion: bundle.stockVersion,
      latestStockHash: stock,
      currentHash: shouldWrite ? stock : currentHash,
      bindingStockHash: shouldWrite ? stock : binding?.stockHash ?? stock,
      changedFiles: shouldWrite ? [] : changedFileList(currentFiles, bundle.skill.files),
    });
  }

  function normalizeRoutineVariablesForHash(input: {
    title: string;
    description?: string | null;
    variables?: RoutineVariable[] | null;
  }) {
    return syncRoutineVariablesWithTemplate(
      [input.title, input.description ?? ""],
      input.variables ?? [],
    ).map((variable) => ({
      name: variable.name,
      label: variable.label ?? null,
      type: variable.type ?? "text",
      defaultValue: variable.defaultValue ?? null,
      required: variable.required ?? true,
      options: variable.options ?? [],
    }));
  }

  function normalizeRoutineTriggersForHash(
    triggers: Array<{
      kind: string;
      label?: string | null;
      cronExpression?: string | null;
      timezone?: string | null;
    }>,
  ) {
    return triggers
      .filter((trigger) => trigger.kind === "schedule")
      .map((trigger) => ({
        kind: "schedule",
        label: trigger.label ?? null,
        cronExpression: trigger.cronExpression ?? "",
        timezone: trigger.timezone ?? "UTC",
      }))
      .sort((left, right) => stableJson(left).localeCompare(stableJson(right)));
  }

  function routineDefaultsHash(
    routine: Pick<
      BuiltInAgentBundleDefinition["routine"],
      "title" | "description" | "priority" | "concurrencyPolicy" | "catchUpPolicy" | "variables"
    >,
    triggers: Array<{
      kind: string;
      label?: string | null;
      cronExpression?: string | null;
      timezone?: string | null;
    }>,
  ) {
    return stockHash({
      title: routine.title,
      description: routine.description ?? "",
      priority: routine.priority,
      concurrencyPolicy: routine.concurrencyPolicy,
      catchUpPolicy: routine.catchUpPolicy,
      variables: normalizeRoutineVariablesForHash(routine),
      triggers: normalizeRoutineTriggersForHash(triggers),
    });
  }

  async function getRoutineByBinding(companyId: string, definition: BuiltInAgentDefinition) {
    const binding = await getManagedResourceBinding(companyId, definition.key, "routine", definition.bundle!.routine.routineKey);
    const routine = binding
      ? await db
        .select()
        .from(routines)
        .where(and(eq(routines.companyId, companyId), eq(routines.id, binding.resourceId)))
        .then((rows) => rows[0] as Routine | undefined ?? null)
      : await db
        .select()
        .from(routines)
        .where(and(
          eq(routines.companyId, companyId),
          eq(routines.originKind, "built_in_agent_bundle"),
          eq(routines.originId, `${definition.key}:${definition.bundle!.routine.routineKey}`),
        ))
        .then((rows) => rows[0] as Routine | undefined ?? null);
    const triggers = routine
      ? await db
        .select()
        .from(routineTriggers)
        .where(eq(routineTriggers.routineId, routine.id))
        .then((rows) => rows as RoutineTrigger[])
      : [];
    return { binding, routine, triggers };
  }

  function routineScheduleEnabled(routine: Routine | null, triggers: RoutineTrigger[]) {
    return Boolean(
      routine?.status === "active"
      && triggers.some((trigger) => trigger.kind === "schedule" && trigger.enabled),
    );
  }

  async function pendingUpdateProposal(agent: Agent | null) {
    if (!agent) return null;
    return db
      .select({
        interactionId: issueThreadInteractions.id,
        issueId: issues.id,
        issueIdentifier: issues.identifier,
      })
      .from(issueThreadInteractions)
      .innerJoin(issues, eq(issueThreadInteractions.issueId, issues.id))
      .where(and(
        eq(issueThreadInteractions.companyId, agent.companyId),
        eq(issueThreadInteractions.createdByAgentId, agent.id),
        eq(issueThreadInteractions.kind, "request_confirmation"),
        eq(issueThreadInteractions.status, "pending"),
      ))
      .orderBy(desc(issueThreadInteractions.createdAt), desc(issueThreadInteractions.id))
      .limit(1)
      .then((rows) => rows[0] ?? null);
  }

  function withRoutineControls(
    state: BuiltInManagedResourceState,
    input: {
      routine: Routine | null;
      triggers: RoutineTrigger[];
      proposal: Awaited<ReturnType<typeof pendingUpdateProposal>>;
    },
  ) {
    if (state.resourceKind !== "routine") return state;
    return {
      ...state,
      scheduleEnabled: routineScheduleEnabled(input.routine, input.triggers),
      pendingUpdateInteractionId: input.proposal?.interactionId ?? null,
      pendingUpdateIssueId: input.proposal?.issueId ?? null,
      pendingUpdateIssueIdentifier: input.proposal?.issueIdentifier ?? null,
    };
  }

  async function requireBundleRoutine(companyId: string, key: string, routineKey: string) {
    const definition = requireBuiltInAgentDefinition(key);
    if (!definition.bundle || definition.bundle.routine.routineKey !== routineKey) {
      throw notFound("Built-in routine not found");
    }
    await ensureCompany(companyId);
    const agent = await findSingleAgent(companyId, definition);
    if (!agent) throw notFound("Built-in agent is not provisioned");
    const current = await getRoutineByBinding(companyId, definition);
    if (!current.routine) throw notFound("Built-in routine not found");
    const schedule = current.triggers.find((trigger) => trigger.kind === "schedule") ?? null;
    return { definition, agent, routine: current.routine, triggers: current.triggers, schedule };
  }

  async function ensureBuiltInAgentAssignable(agent: Agent) {
    if (agent.status !== "paused" || ["preparing", "verifying", "resuming"].includes(agent.lifecycleState ?? "")) return agent;
    const resumed = await agentSvcLifecycle.resumeAgent(agent.id);
    if (!resumed) throw notFound("Built-in agent not found");
    return resumed as Agent;
  }

  async function createOrResetRoutine(agent: Agent, definition: BuiltInAgentDefinition, existing: Routine | null, mode: "reconcile" | "reset") {
    const routine = definition.bundle!.routine;
    const actor = { agentId: null, userId: "built-in-bundles" };
    const nextRoutine = existing
      ? await routineSvc.update(existing.id, {
        title: routine.title,
        description: routine.description,
        assigneeAgentId: agent.id,
        priority: routine.priority,
        status: routine.status,
        concurrencyPolicy: routine.concurrencyPolicy,
        catchUpPolicy: routine.catchUpPolicy,
        variables: routine.variables,
      }, actor)
      : await routineSvc.create(agent.companyId, {
        title: routine.title,
        description: routine.description,
        assigneeAgentId: agent.id,
        priority: routine.priority,
        status: routine.status,
        concurrencyPolicy: routine.concurrencyPolicy,
        catchUpPolicy: routine.catchUpPolicy,
        variables: routine.variables,
      }, actor);
    if (!nextRoutine) throw notFound("Built-in routine not found");
    await db
      .update(routines)
      .set({
        originKind: "built_in_agent_bundle",
        originId: `${definition.key}:${routine.routineKey}`,
        updatedAt: new Date(),
      })
      .where(eq(routines.id, nextRoutine.id));

    const currentTriggers = await db
      .select()
      .from(routineTriggers)
      .where(eq(routineTriggers.routineId, nextRoutine.id))
      .then((rows) => rows as RoutineTrigger[]);
    const firstSchedule = currentTriggers.find((trigger) => trigger.kind === "schedule");
    const stockTrigger = routine.triggers[0];
    if (stockTrigger && firstSchedule) {
      await routineSvc.updateTrigger(firstSchedule.id, {
        label: stockTrigger.label,
        enabled: stockTrigger.enabled,
        cronExpression: stockTrigger.cronExpression,
        timezone: stockTrigger.timezone,
      }, actor);
    } else if (stockTrigger) {
      await routineSvc.createTrigger(nextRoutine.id, {
        kind: "schedule",
        label: stockTrigger.label,
        enabled: stockTrigger.enabled,
        cronExpression: stockTrigger.cronExpression,
        timezone: stockTrigger.timezone,
      }, actor);
    }
    await logActivity(db, {
      companyId: agent.companyId,
      actorType: "system",
      actorId: "built-in-bundles",
      action: mode === "reset" ? "built_in_agent.routine_reset" : "built_in_agent.routine_reconciled",
      entityType: "routine",
      entityId: nextRoutine.id,
      details: {
        key: definition.key,
        routineKey: routine.routineKey,
        status: routine.status,
      },
    });
    return nextRoutine;
  }

  async function materializeRoutine(agent: Agent, definition: BuiltInAgentDefinition, mode: "reconcile" | "reset") {
    const bundle = definition.bundle!;
    const stock = routineDefaultsHash(bundle.routine, bundle.routine.triggers);
    const { binding, routine, triggers } = await getRoutineByBinding(agent.companyId, definition);
    const currentHash = routine ? routineDefaultsHash({
      title: routine.title,
      description: routine.description ?? "",
      priority: routine.priority as "critical" | "high" | "medium" | "low",
      concurrencyPolicy: routine.concurrencyPolicy as "always_enqueue" | "coalesce_if_active" | "skip_if_active",
      catchUpPolicy: routine.catchUpPolicy as "enqueue_missed_with_cap" | "skip_missed",
      variables: routine.variables ?? [],
    }, triggers) : null;
    const currentState = stockState({
      resourceKind: "routine",
      resourceKey: bundle.routine.routineKey,
      resourceId: routine?.id ?? null,
      stockVersion: bundle.stockVersion,
      latestStockHash: stock,
      currentHash,
      bindingStockHash: binding?.stockHash ?? null,
    });
    const shouldWrite =
      mode === "reset"
      || currentState.stockStatus === "missing"
      || currentState.stockStatus === "stock_update_available";
    const nextRoutine = shouldWrite
      ? await createOrResetRoutine(agent, definition, routine, mode)
      : routine!;
    await upsertManagedResourceBinding({
      companyId: agent.companyId,
      bundleKey: definition.key,
      resourceKind: "routine",
      resourceKey: bundle.routine.routineKey,
      resourceId: nextRoutine.id,
      stockVersion: bundle.stockVersion,
      stockHash: shouldWrite ? stock : binding?.stockHash ?? stock,
      defaultsJson: {
        title: bundle.routine.title,
        status: bundle.routine.status,
        triggerCount: bundle.routine.triggers.length,
      },
    });
    const next = await getRoutineByBinding(agent.companyId, definition);
    return withRoutineControls(stockState({
      resourceKind: "routine",
      resourceKey: bundle.routine.routineKey,
      resourceId: nextRoutine.id,
      stockVersion: bundle.stockVersion,
      latestStockHash: stock,
      currentHash: shouldWrite ? stock : currentHash,
      bindingStockHash: shouldWrite ? stock : binding?.stockHash ?? stock,
    }), {
      routine: next.routine,
      triggers: next.triggers,
      proposal: await pendingUpdateProposal(agent),
    });
  }

  async function bundleResourceStates(companyId: string, definition: BuiltInAgentDefinition, agent: Agent | null) {
    if (!definition.bundle || !agent) return [];
    const bundle = definition.bundle;
    const [instructionBinding, skillBinding, routineBinding] = await Promise.all([
      getManagedResourceBinding(companyId, definition.key, "instructions", "AGENTS.md"),
      getManagedResourceBinding(companyId, definition.key, "skill", bundle.skill.skillKey),
      getManagedResourceBinding(companyId, definition.key, "routine", bundle.routine.routineKey),
    ]);
    const instructionFiles = await currentInstructionFiles(agent, bundle);
    const skill = skillBinding
      ? await skillSvc.getById(companyId, skillBinding.resourceId)
      : await skillSvc.getByKey(companyId, bundle.skill.canonicalKey);
    const skillFiles = await getCurrentSkillFiles(companyId, skill, bundle);
    const { routine, triggers } = await getRoutineByBinding(companyId, definition);
    const proposal = await pendingUpdateProposal(agent);
    const instructionHash = Object.values(instructionFiles).every((value) => value !== null)
      ? stockHash(instructionFiles)
      : null;
    const skillHash = skill && Object.values(skillFiles).every((value) => value !== null)
      ? stockHash(skillFiles)
      : null;
    const routineHash = routine ? routineDefaultsHash({
      title: routine.title,
      description: routine.description ?? "",
      priority: routine.priority as "critical" | "high" | "medium" | "low",
      concurrencyPolicy: routine.concurrencyPolicy as "always_enqueue" | "coalesce_if_active" | "skip_if_active",
      catchUpPolicy: routine.catchUpPolicy as "enqueue_missed_with_cap" | "skip_missed",
      variables: routine.variables ?? [],
    }, triggers) : null;
    return [
      stockState({
        resourceKind: "instructions",
        resourceKey: "AGENTS.md",
        resourceId: agent.id,
        stockVersion: bundle.stockVersion,
        latestStockHash: stockHash(bundle.instructions.files),
        currentHash: instructionHash,
        bindingStockHash: instructionBinding?.stockHash ?? null,
        changedFiles: changedFileList(instructionFiles, bundle.instructions.files),
      }),
      stockState({
        resourceKind: "skill",
        resourceKey: bundle.skill.skillKey,
        resourceId: skill?.id ?? null,
        stockVersion: bundle.stockVersion,
        latestStockHash: stockHash(bundle.skill.files),
        currentHash: skillHash,
        bindingStockHash: skillBinding?.stockHash ?? null,
        changedFiles: changedFileList(skillFiles, bundle.skill.files),
      }),
      withRoutineControls(stockState({
        resourceKind: "routine",
        resourceKey: bundle.routine.routineKey,
        resourceId: routine?.id ?? null,
        stockVersion: bundle.stockVersion,
        latestStockHash: routineDefaultsHash(bundle.routine, bundle.routine.triggers),
        currentHash: routineHash,
        bindingStockHash: routineBinding?.stockHash ?? null,
      }), { routine, triggers, proposal }),
    ];
  }

  async function reconcileBundleResources(
    agent: Agent,
    definition: BuiltInAgentDefinition,
    mode: "reconcile" | "reset",
    resources?: Array<"instructions" | "skill" | "routine">,
    actor?: AuthorizationActor,
  ) {
    if (!definition.bundle) return [];
    const selected = new Set(resources ?? ["instructions", "skill", "routine"]);
    const existingStates = await bundleResourceStates(agent.companyId, definition, agent);
    const byKind = new Map(existingStates.map((state) => [state.resourceKind, state]));
    const instruction = selected.has("instructions")
      ? await materializeInstructions(agent, definition, mode, actor)
      : byKind.get("instructions")!;
    const refreshedAgent = await agentSvc.getById(agent.id) as Agent | null;
    if (!refreshedAgent) throw notFound("Built-in agent not found");
    const skill = selected.has("skill")
      ? await materializeSkill(refreshedAgent, definition, mode)
      : byKind.get("skill")!;
    const refreshedAfterSkill = await agentSvc.getById(agent.id) as Agent | null;
    if (!refreshedAfterSkill) throw notFound("Built-in agent not found");
    const routine = selected.has("routine")
      ? await materializeRoutine(refreshedAfterSkill, definition, mode)
      : byKind.get("routine")!;
    return [instruction, skill, routine];
  }

  async function ensureCompany(companyId: string) {
    const company = await db
      .select({
        id: companies.id,
        requireBoardApprovalForNewAgents: companies.requireBoardApprovalForNewAgents,
      })
      .from(companies)
      .where(eq(companies.id, companyId))
      .then((rows) => rows[0] ?? null);
    if (!company) throw notFound("Company not found");
    return company;
  }

  async function findMarkedRows(companyId: string, key: string) {
    const rows = await db
      .select()
      .from(agents)
      .where(and(eq(agents.companyId, companyId), ne(agents.status, "terminated")));
    return rows
      .filter((row) => rowIsBuiltInAgent(row, key))
      .sort((left, right) => left.createdAt.getTime() - right.createdAt.getTime() || left.id.localeCompare(right.id));
  }

  // Self-heal duplicate built-in agents. `findMarkedRows` already sorts oldest
  // first, so the first row is authoritative: keep it, terminate the rest, and
  // cancel each duplicate's orphan pending hire_agent approval. Idempotent, so
  // concurrent callers converge on the same surviving row.
  async function resolveDuplicateMarkedRows(
    companyId: string,
    definition: BuiltInAgentDefinition,
    markedRows: Array<typeof agents.$inferSelect>,
  ) {
    const [keep, ...duplicates] = markedRows;
    for (const duplicate of duplicates) {
      const openApproval = await approvalSvc.findOpenHireApprovalForAgent(companyId, duplicate.id);
      await agentSvcLifecycle.terminateAgent(duplicate.id);
      if (openApproval) {
        await approvalSvc.cancel(
          openApproval.id,
          `Cancelled: duplicate built-in ${definition.key} agent resolved during reconciliation.`,
        );
      }
      await logActivity(db, {
        companyId,
        actorType: "system",
        actorId: "built-in-agents",
        action: "built_in_agent.duplicate_resolved",
        entityType: "agent",
        entityId: duplicate.id,
        details: {
          key: definition.key,
          keptAgentId: keep!.id,
          terminatedAgentId: duplicate.id,
          cancelledApprovalId: openApproval?.id ?? null,
        },
      });
    }
    return keep!;
  }

  async function findSingleAgent(companyId: string, definition: BuiltInAgentDefinition) {
    const markedRows = await findMarkedRows(companyId, definition.key);
    if (markedRows.length === 0) return null;
    const survivor = markedRows.length > 1
      ? await resolveDuplicateMarkedRows(companyId, definition, markedRows)
      : markedRows[0]!;
    const agent = await agentSvc.getById(survivor.id);
    return agent as Agent | null;
  }

  async function state(
    definition: BuiltInAgentDefinition,
    agent: Agent | null,
    resources?: BuiltInManagedResourceState[],
  ): Promise<BuiltInAgentState> {
    return {
      definition,
      status: deriveBuiltInAgentStatus(agent),
      agentId: agent?.id ?? null,
      agent,
      pauseReason: agent?.pauseReason ?? null,
      resources: resources ?? await bundleResourceStates(agent?.companyId ?? "", definition, agent),
    };
  }

  async function get(companyId: string, key: string) {
    const definition = requireBuiltInAgentDefinition(key);
    await ensureCompany(companyId);
    return state(definition, await findSingleAgent(companyId, definition));
  }

  async function ensure(
    companyId: string,
    key: string,
    input: BuiltInAgentProvisionInput = {},
    options: { isRaceRetry?: boolean; createdByUserId?: string | null } = {},
  ) {
    const definition = requireBuiltInAgentDefinition(key);
    await ensureCompany(companyId);
    const existing = await findSingleAgent(companyId, definition);
    const existingPendingApproval = existing?.status === "pending_approval";
    const preserveExistingAdapter = Boolean(
      existing
      && !existingPendingApproval
      && input.adapterType === undefined
      && input.adapterConfig === undefined
      && input.runner === undefined,
    );
    const resolvedInput = existingPendingApproval || preserveExistingAdapter
      ? input
      : existing && input.runner !== undefined && input.adapterType === undefined && input.adapterConfig === undefined
        ? { ...input, adapterType: existing.adapterType, adapterConfig: existing.adapterConfig }
        : await defaultProvisionInput(companyId, definition, input);
    if (!existingPendingApproval && !preserveExistingAdapter) {
      await assertKnownBuiltInAgentModel(definition, resolvedInput);
    }
    if (existing) {
      const patch: Partial<typeof agents.$inferInsert> = {
        metadata: builtInMetadata(definition, existing.metadata),
      };
      if (
        !existingPendingApproval
        && (resolvedInput.adapterType !== undefined || resolvedInput.adapterConfig !== undefined || resolvedInput.runner !== undefined)
      ) {
        const adapterType = resolvedInput.adapterType ?? existing.adapterType;
        const adapterConfig = resolvedInput.adapterConfig ?? existing.adapterConfig;
        assertAdapterAllowed(definition, adapterType, adapterConfig);
        const sameCodexHarness = agentHarnessType(adapterType, adapterConfig) === "codex_local"
          && agentHarnessType(existing.adapterType, existing.adapterConfig) === "codex_local";
        const runner = resolvedInput.runner ?? (sameCodexHarness && existing.metadata?.paperclipBuiltInSetupRequired !== true
          ? agentRunner(existing.adapterType) : undefined);
        const retainedNative = sameCodexHarness && runner === "paperclip" && existing.adapterType === "paperclip_runner";
        const resolvedAdapterConfig = { ...adapterConfig };
        if (retainedNative) {
          for (const field of ["provider", "acpxAgent", "acpxMode"]) {
            if (existing.adapterConfig[field] !== undefined) resolvedAdapterConfig[field] = existing.adapterConfig[field];
          }
        }
        Object.assign(patch, runner !== undefined || existing.metadata?.paperclipBuiltInSetupRequired === true
          ? await resolveNewAgentRunnerForCompany(db, companyId, {
            adapterType: retainedNative ? existing.adapterType : adapterType,
            adapterConfig: resolvedAdapterConfig, runner,
            defaultEnvironmentId: existing.defaultEnvironmentId,
          })
          : { adapterType, adapterConfig });
        if (hasCompleteAdapterConfig(patch.adapterType ?? existing.adapterType, patch.adapterConfig ?? existing.adapterConfig)) {
          patch.metadata = { ...patch.metadata, paperclipBuiltInSetupRequired: false };
        }
      }
      if (!existingPendingApproval && resolvedInput.budgetMonthlyCents !== undefined) {
        patch.budgetMonthlyCents = resolvedInput.budgetMonthlyCents;
      }
      if (
        !existingPendingApproval
        && definition.defaultManager === "single_root_agent"
        && !existing.reportsTo
      ) {
        const reportsTo = await findSingleRootManager(companyId);
        if (reportsTo) patch.reportsTo = reportsTo;
      }
      const updated = await agentSvc.update(existing.id, patch, {
        allowBuiltInAgentMetadata: true,
        recordRevision: { source: "built-in-agent:ensure" },
      });
      if (!updated) throw notFound("Built-in agent not found");
      if (existingPendingApproval) {
        return state(definition, updated as Agent);
      }
      await ensureBuiltInAgentDefaultGrants(updated as Agent, definition);
      const resources = await reconcileBundleResources(updated as Agent, definition, "reconcile");
      return state(definition, await agentSvc.getById(existing.id) as Agent, resources);
    }

    const reportsTo = definition.defaultManager === "single_root_agent"
      ? await findSingleRootManager(companyId)
      : null;
    let created: Agent;
    try {
      created = await agentSvcLifecycle.requestHire(companyId, {
        ...definitionPatch(definition, resolvedInput),
        status: definition.defaultStatus ?? "idle",
        pauseReason: definition.defaultStatus === "paused"
          ? `Built-in ${definition.displayName} is disabled until explicitly configured.`
          : null,
        pausedAt: definition.defaultStatus === "paused" ? new Date() : null,
        reportsTo,
        metadata: {
          ...builtInMetadata(definition),
          paperclipBuiltInSetupRequired: !hasCompleteAdapterConfig(
            definitionPatch(definition, resolvedInput).adapterType,
            definitionPatch(definition, resolvedInput).adapterConfig,
          ),
        },
        runtimeConfig: definition.defaultRuntimeConfig ?? {},
        permissions: definition.defaultPermissions ?? {},
        spentMonthlyCents: 0,
        lastHeartbeatAt: null,
      }, { allowBuiltInAgentMetadata: true, createdByUserId: options.createdByUserId ?? null }) as Agent;
    } catch (error) {
      // Lost the provisioning race: a concurrent writer inserted the row first
      // and the partial unique index rejected ours. Re-run once; the winning
      // row now exists, so we take the update path instead of inserting again.
      if (!options.isRaceRetry && isBuiltInAgentMarkerConflict(error)) {
        return ensure(companyId, key, input, { isRaceRetry: true, createdByUserId: options.createdByUserId });
      }
      throw error;
    }

    await logActivity(db, {
      companyId,
      actorType: "system",
      actorId: "built-in-agents",
      action: "built_in_agent.provisioned",
      entityType: "agent",
      entityId: created.id,
      details: {
        key: definition.key,
        featureKeys: definition.featureKeys,
        status: deriveBuiltInAgentStatus(created),
      },
    });

    await ensureBuiltInAgentDefaultGrants(created, definition);
    const resources = await reconcileBundleResources(created, definition, "reconcile");
    return state(definition, await agentSvc.getById(created.id) as Agent, resources);
  }

  async function provision(
    companyId: string,
    key: string,
    input: BuiltInAgentProvisionInput = {},
    actor: BuiltInAgentProvisionActor = {},
  ): Promise<BuiltInAgentProvisionResult> {
    const definition = requireBuiltInAgentDefinition(key);
    const company = await ensureCompany(companyId);
    if (!company.requireBoardApprovalForNewAgents) {
      return { state: await ensure(companyId, key, input, { createdByUserId: actor.requestedByUserId ?? null }), approval: null };
    }
    await assertKnownBuiltInAgentModel(definition, input);

    const existing = await findSingleAgent(companyId, definition);
    if (existing) {
      if (existing.status === "pending_approval") {
        if (hasProvisionSetupInput(input)) {
          throw conflict("Built-in agent setup is already pending board approval.", {
            code: "built_in_agent_pending_approval",
            key: definition.key,
            agentId: existing.id,
          });
        }
        const approval = await approvalSvc.findOpenHireApprovalForAgent(companyId, existing.id);
        return {
          state: await state(definition, existing),
          approval: approval as Approval | null,
        };
      }

      const providesAdapterSetup = input.adapterType !== undefined || input.adapterConfig !== undefined || input.runner !== undefined;

      // A built-in row that has never completed adapter setup (incomplete
      // config, i.e. `needs_setup`) is still first-time configuration, not a
      // reconfiguration of a live agent. Its existence was already sanctioned
      // when the row was created — e.g. the auto-provisioned Reflection Coach
      // hire approval resolves (`activatePendingApproval`) to an idle row whose
      // adapterConfig is still empty. Completing that setup applies directly, as
      // it does when board approval is not required, instead of dead-ending on a
      // fresh board-approval requirement the operator can never satisfy.
      if (providesAdapterSetup && (existing.metadata?.paperclipBuiltInSetupRequired === true || !hasCompleteAdapterConfig(existing.adapterType, existing.adapterConfig))) {
        return { state: await ensure(companyId, key, input), approval: null };
      }

      // Changing the adapter of an already-configured (`ready`/`paused`)
      // built-in agent is a genuine reconfiguration and stays gated.
      if (providesAdapterSetup) {
        throw conflict("Built-in agent adapter changes require board approval before they can be applied.", {
          code: "built_in_agent_reconfiguration_requires_approval",
          key: definition.key,
          agentId: existing.id,
        });
      }

      return { state: await state(definition, existing), approval: null };
    }

    const reportsTo = definition.defaultManager === "single_root_agent"
      ? await findSingleRootManager(companyId)
      : null;
    let pending: Agent;
    try {
      pending = await agentSvcLifecycle.requestHire(companyId, {
        ...definitionPatch(definition, input),
        status: "pending_approval",
        reportsTo,
        metadata: {
          ...builtInMetadata(definition),
          paperclipBuiltInSetupRequired: !hasCompleteAdapterConfig(
            definitionPatch(definition, input).adapterType,
            definitionPatch(definition, input).adapterConfig,
          ),
        },
        runtimeConfig: definition.defaultRuntimeConfig ?? {},
        permissions: definition.defaultPermissions ?? {},
        spentMonthlyCents: 0,
        lastHeartbeatAt: null,
      }, { allowBuiltInAgentMetadata: true, createdByUserId: actor.requestedByUserId ?? null }) as Agent;
    } catch (error) {
      // Lost the provisioning race: a concurrent writer inserted the row (and
      // its own hire approval) first, and the partial unique index rejected
      // ours before we created a paired approval. Re-resolve to the winner and
      // return its pending state + open approval instead of surfacing the 23505.
      if (isBuiltInAgentMarkerConflict(error)) {
        const winner = await findSingleAgent(companyId, definition);
        if (winner) {
          const winnerApproval = winner.status === "pending_approval"
            ? await approvalSvc.findOpenHireApprovalForAgent(companyId, winner.id)
            : null;
          return { state: await state(definition, winner), approval: winnerApproval as Approval | null };
        }
      }
      throw error;
    }

    const approval = await approvalSvc.create(companyId, {
      type: "hire_agent",
      requestedByAgentId: actor.requestedByAgentId ?? null,
      requestedByUserId: actor.requestedByUserId ?? null,
      status: "pending",
      payload: {
        name: pending.name,
        role: pending.role,
        title: pending.title,
        icon: pending.icon,
        reportsTo: pending.reportsTo,
        capabilities: pending.capabilities,
        adapterType: pending.adapterType,
        adapterConfig: pending.adapterConfig,
        runtimeConfig: pending.runtimeConfig,
        permissions: pending.permissions,
        budgetMonthlyCents: pending.budgetMonthlyCents,
        metadata: pending.metadata,
        agentId: pending.id,
        sourceBuiltInAgentKey: definition.key,
        featureKeys: definition.featureKeys,
      },
      decisionNote: null,
      decidedByUserId: null,
      decidedAt: null,
      updatedAt: new Date(),
    }) as Approval;

    return { state: await state(definition, pending), approval };
  }

  async function list(companyId: string) {
    await ensureCompany(companyId);
    return Promise.all(DEFINITIONS.map(async (definition) => state(definition, await findSingleAgent(companyId, definition))));
  }

  async function reconcileDefinitionDefaults(companyId: string, key: string) {
    const definition = requireBuiltInAgentDefinition(key);
    await ensureCompany(companyId);
    const existing = await findSingleAgent(companyId, definition);
    if (!existing) return state(definition, null);
    const patch = {
      name: definition.displayName,
      role: definition.defaultRole,
      title: definition.defaultTitle ?? null,
      icon: definition.defaultIcon ?? null,
      capabilities: definition.shortPurpose,
      metadata: builtInMetadata(definition, existing.metadata),
    };
    const updated = await agentSvc.update(existing.id, patch, {
      allowBuiltInAgentMetadata: true,
      recordRevision: { source: "built-in-agent:reconcile-defaults" },
    });
    if (!updated) throw notFound("Built-in agent not found");
    await ensureBuiltInAgentDefaultGrants(updated as Agent, definition);
    return state(definition, updated as Agent);
  }

  async function reset(companyId: string, key: string, input: { resources?: Array<"agent" | "instructions" | "skill" | "routine"> } = {}, actor?: AuthorizationActor) {
    const definition = requireBuiltInAgentDefinition(key);
    const resetAgentDefaults = !input.resources || input.resources.includes("agent");
    const current = resetAgentDefaults
      ? await reconcileDefinitionDefaults(companyId, key)
      : await get(companyId, key);
    if (!current.agent || !definition.bundle) return current;
    const selectedBundleResources = input.resources?.filter(
      (resource): resource is "instructions" | "skill" | "routine" => resource !== "agent",
    );
    const resources = await reconcileBundleResources(
      current.agent,
      definition,
      "reset",
      input.resources ? selectedBundleResources ?? [] : undefined,
      actor,
    );
    return state(definition, await agentSvc.getById(current.agent.id) as Agent, resources);
  }

  async function setRoutineSchedule(
    companyId: string,
    key: string,
    routineKey: string,
    enabled: boolean,
    actor: { agentId?: string | null; userId?: string | null; runId?: string | null } = {},
  ) {
    const { definition, agent, routine, schedule } = await requireBundleRoutine(companyId, key, routineKey);
    if (!schedule) throw notFound("Built-in routine schedule not found");
    if (enabled) {
      await ensureBuiltInAgentAssignable(agent);
      await routineSvc.update(routine.id, { status: "active" }, actor);
      await routineSvc.updateTrigger(schedule.id, { enabled: true }, actor);
    } else {
      await routineSvc.updateTrigger(schedule.id, { enabled: false }, actor);
      await routineSvc.update(routine.id, { status: "paused" }, actor);
    }
    return state(definition, await agentSvc.getById(agent.id) as Agent);
  }

  async function runRoutine(
    companyId: string,
    key: string,
    routineKey: string,
    actor: { agentId?: string | null; userId?: string | null; runId?: string | null } = {},
  ) {
    const { agent, routine } = await requireBundleRoutine(companyId, key, routineKey);
    await ensureBuiltInAgentAssignable(agent);
    return routineSvc.runRoutine(routine.id, { source: "manual" }, actor);
  }

  async function requireBuiltInAgent(companyId: string, key: string): Promise<RequiredBuiltInAgent> {
    const current = await get(companyId, key);
    if (!current.agent) throw builtInAgentNotConfiguredError(current);
    if (current.status === "ready") {
      return { definition: current.definition, agent: current.agent, warning: null };
    }
    if (current.status === "paused") {
      return {
        definition: current.definition,
        agent: current.agent,
        warning: {
          code: "built_in_agent_paused",
          key: current.definition.key,
          agentId: current.agent.id,
          message: `Built-in agent ${current.definition.key} is paused; scheduled/background work should be skipped.`,
          pauseReason: current.pauseReason,
        },
      };
    }
    throw builtInAgentNotConfiguredError(current);
  }

  async function autoProvisionBundledAgents(companyId: string) {
    const company = await ensureCompany(companyId);
    let autoEnsured = 0;
    let pendingApprovals = 0;
    // A fresh company starts with only its own lead agent — the Reflection
    // Coach and Summarizer are no longer auto-created for new users. They stay
    // available to enable on demand (via ensure / provision / the built-in
    // bundle panel). We still reconcile any bundled agent that already exists
    // (e.g. one an operator enabled) so its instructions/skill/routine keep
    // tracking stock. Add a key to AUTO_PROVISION_ON_COMPANY_CREATE_KEYS to
    // restore automatic creation for that definition.
    for (const definition of DEFINITIONS.filter((entry) => entry.bundle)) {
      const existing = await findSingleAgent(companyId, definition);
      const shouldProvision = existing !== null || AUTO_PROVISION_ON_COMPANY_CREATE_KEYS.has(definition.key);
      if (!shouldProvision) continue;
      if (company.requireBoardApprovalForNewAgents) {
        const result = await provision(companyId, definition.key);
        if (result.approval) pendingApprovals += 1;
      } else {
        await ensure(companyId, definition.key);
      }
      autoEnsured += 1;
    }
    const defaultGrantsEnsured = await ensureCompanyDefaultAgentGrants(companyId);
    return { autoEnsured, pendingApprovals, defaultGrantsEnsured };
  }

  return {
    definitions: listBuiltInAgentDefinitions,
    get,
    ensure,
    provision,
    list,
    reset,
    enableRoutineSchedule: (
      companyId: string,
      key: string,
      routineKey: string,
      actor?: { agentId?: string | null; userId?: string | null; runId?: string | null },
    ) => setRoutineSchedule(companyId, key, routineKey, true, actor),
    disableRoutineSchedule: (
      companyId: string,
      key: string,
      routineKey: string,
      actor?: { agentId?: string | null; userId?: string | null; runId?: string | null },
    ) => setRoutineSchedule(companyId, key, routineKey, false, actor),
    runRoutine,
    requireBuiltInAgent,
    autoProvisionBundledAgents,
    ensureCompanyDefaultAgentGrants,
    reconcileDefinitionDefaults,
  };
}

export async function reconcileBuiltInAgentsOnStartup(db: Db) {
  const svc = builtInAgentService(db);
  const companyRows = await db
    .select({ id: companies.id })
    .from(companies);
  let autoEnsured = 0;
  let pendingApprovals = 0;
  let defaultGrantsEnsured = 0;
  // Isolate per-company failures so one bad company (e.g. an unresolvable data
  // problem) can no longer abort reconciliation for every company after it.
  let companyFailures = 0;
  for (const company of companyRows) {
    try {
      const result = await svc.autoProvisionBundledAgents(company.id);
      autoEnsured += result.autoEnsured;
      pendingApprovals += result.pendingApprovals;
      defaultGrantsEnsured += result.defaultGrantsEnsured;
    } catch (err) {
      companyFailures += 1;
      console.error(
        `built-in agent auto-provisioning failed for company ${company.id}; continuing with remaining companies`,
        err,
      );
    }
  }
  const rows = await db
    .select({
      companyId: agents.companyId,
      metadata: agents.metadata,
      status: agents.status,
    })
    .from(agents)
    .where(ne(agents.status, "terminated"));
  const seen = new Set<string>();
  let scanned = 0;
  let reconciled = 0;
  let unknown = 0;
  let duplicates = 0;

  for (const row of rows) {
    const marker = readBuiltInAgentMarker(row.metadata);
    if (!marker) continue;
    scanned += 1;
    if (!getBuiltInAgentDefinition(marker.key)) {
      unknown += 1;
      continue;
    }
    const instanceKey = `${row.companyId}:${marker.key}`;
    if (seen.has(instanceKey)) {
      duplicates += 1;
      continue;
    }
    seen.add(instanceKey);
    try {
      await svc.reconcileDefinitionDefaults(row.companyId, marker.key);
      reconciled += 1;
    } catch (err) {
      companyFailures += 1;
      console.error(
        `built-in agent default reconciliation failed for company ${row.companyId} key ${marker.key}; continuing`,
        err,
      );
    }
  }

  return { scanned, reconciled, unknown, duplicates, autoEnsured, pendingApprovals, defaultGrantsEnsured, companyFailures };
}