DottaandClaude Opus 5.5
1eff07f29e
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - The task chat shows what an agent does in a run. The Paperclip Runner sends this activity as canonical provider events. > - Claude runs subagents through its Agent (Task) tool. A run that delegates showed a confusing burst of unrelated tool calls. > - The subagent data was already sent, but it was lost: ACPX dropped `_meta`, the hardened sidecar dropped `rawInput`, and async subagents report "launched" as the tool result. > - This pull request maps each Agent call to a canonical `delegation` event, links each child tool to its subagent, and shows subagents as a collapsible card or tree. > - The benefit is that operators can see what each subagent was asked, what it is doing now, which tools it used, and what it returned. ## Linked Issues or Issue Description Refs #19252 (the docked plan card used the same canonical-event pattern) Refs #19259 (ACPX `_meta` passthrough, merged). This PR builds on it. **What happened?** When a Claude agent used its Agent tool, the task chat showed one generic "Task" row and then the subagents' tool calls as flat rows in the parent turn. The subagent type, prompt, progress and result were not visible. **Expected behavior** Each subagent shows as its own card with its type, description, prompt, live progress summary, nested tool rows and result. Subagents that start together show as one tree with status dots. **Steps to reproduce** 1. Assign a Claude (Paperclip Runner, ACPX) agent a task that asks it to launch three Explore subagents in parallel. 2. Open the task while the run is live. 3. Before this change, the subagents' tool calls appear flat in the parent turn. ## What Changed - **claude-agent-acp patch:** Under the isolated runner context, the patch turns on the SDK option `agentProgressSummaries`. It forwards each subagent's `task_progress` summary and its terminal state and summary onto the spawning tool call as `_meta.claudeCode.subagentProgress` and `subagentState`. Native subagent sessions stay off, because ACPX cannot follow child ACP sessions. - **Runner:** The new file `claude-subagent-lineage.ts` tracks each Agent/Task call across ACP update deltas. It maps the call to `delegation.started|updated|completed` events and stamps child tools with `parentItemId`. An async subagent stays running after its "Async agent launched" result until its own state settles. - **Sidecar path:** `acpx-runtime-sidecar.ts` reads the lineage before it drops `_meta` and `rawInput`. Delegations go out as schema-checked rich events. Child tools carry `parentToolCallId`, which Rust (`acpx_event_payload.rs`, `provider_events.rs`) maps to `parentItemId`. - **Contracts:** The provider-event schema adds optional `prompt` and `result` to delegation children and optional `parentItemId` to tool executions. The protocol modules are regenerated. ACPX Claude now advertises the `delegation` event family. - **UI:** `native-run-events.ts` keeps delegation payloads and the tool parent link. `buildTurnTimelineRows` groups adjacent delegations into a new `subagent_group` row, nests child tool rows (plain and provider-activity shapes), and hides the spawning call's own tool row. The new `TaskChatSubagentCard.tsx` renders the card and tree. A new size token caps the result height. - **Storybook:** The new story `Tasks and conversations/…/Task chat/Subagents` has 7 states. ## Verification - `pnpm --filter @paperclipai/paperclip-runner exec vitest run src/cli src/drivers/acpx src/provider-events.test.ts src/claude-subagent-lineage.test.ts src/protocol` (2069 passed) - `cargo test --release --locked -p paperclip-runner-core --lib` in `packages/paperclip-runner/runner` (488 passed, including the new parent-link test) - `node --test test/protocol-contract.test.mjs test/acpx-sidecar-contract.test.mjs test/acpx-codex-package-contract.test.mjs test/acpx-rich-extensions-package-contract.test.mjs` (48 passed) - `pnpm --filter @paperclipai/ui exec vitest run src/components/task-chat src/components/transcript`, including the new `subagent-timeline.test.ts` - `check:protocol-types`, `check:protocol-manifest`, `check:acpx-profiles` and `pnpm check:token-gates` pass. - **Live test:** A local test-drive instance ran a Claude Opus 5.5 agent on the Paperclip Runner (hardened sidecar path). The agent ran real tasks that launched three parallel Explore subagents. The live view showed "Running 3 subagents · 2 done" with a progress summary. The settled view showed "Ran 3 subagents", each with its prompt, nested tools and its own result text. ## Risks - `agentProgressSummaries` makes Claude Code generate a short progress summary for each running subagent about every 30 seconds. This adds a small model cost to runs that delegate. - The adapter patch reads `task_notification` and terminal `task_updated` messages. A future claude-agent-acp version can change these. The patch hunks then fail to apply, and the dependency bump must update them. - If a delegation event is lost, child tools stay at the top level as before. Nothing is hidden without a matching delegation. - Codex is not changed. Codex subagents need `multi_agent`, which Paperclip keeps off on purpose. Changing that is a separate policy decision. ## Model Used - Claude Opus 5.5 (`claude-opus-5-5`) in Claude Code, with tool use (shell, file edits, browser automation). It did the investigation, implementation, tests and live test. ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work - [x] I have searched GitHub for duplicate or related PRs and linked them above - [x] I have either (a) linked existing issues with `Fixes: #` / `Closes #` / `Refs #` OR (b) described the issue in-PR following the relevant issue template - [x] I have not referenced internal/instance-local Paperclip issues or links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip` URLs) - [x] My branch name describes the change (e.g. `docs/...`, `fix/...`) and contains no internal Paperclip ticket id or instance-derived details - [x] I have run tests locally and they pass - [x] I have added or updated tests where applicable - [x] I have updated relevant documentation to reflect my changes - [x] I have considered and documented any risks above - [ ] All Paperclip CI gates are green - [ ] Greptile is 5/5 with no open P2s, recommendations, or follow-ups - [x] I will address all Greptile and reviewer comments before requesting merge 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
PRP v1/v2 Contract
The JSON Schema files in schemas/ are the language-neutral source of truth for
Paperclip Runner Protocol versions 1 and 2. The fixtures in fixtures/ define
accepted and rejected compatibility cases.
Compatibility
protocolVersion,fixtureVersion, andevent.schemaVersionare required.- A consumer fails closed when a required version or schema discriminator is not supported.
- A v1 envelope can contain an unknown optional property when its schema marks that object as extensible.
- A consumer ignores an unknown optional property until a later contract gives it meaning.
- A required field, enum value, or typed structured-input field is not optional.
- Question and answer identifiers are stable across the provider boundary.
- Peers negotiate the highest mutually supported protocol version. Existing v1 runners remain compatible but cannot receive v2-only session-goal commands.
The unknown-optional-fields.json fixture must be accepted. The
unsupported-required-version.json fixture must be rejected.
Session goals (v2)
PRP v2 adds a provider-neutral durable session-goal lifecycle. Every v2
capability snapshot includes sessionGoals, even when its availability is
unsupported or policy_disabled. Paperclip sends controls only when the
negotiated capability advertises the corresponding action.
Commands:
session.goal.getsession.goal.setfor objective, status, and optional token budget changessession.goal.clear
Events:
session.capabilities.updatedsession.goal.snapshotsession.goal.updatedsession.goal.cleared
Goal state is separate from Paperclip's company/business goal hierarchy. The
snapshot distinguishes the durable status from workingNow, because an active
goal can be idle between autonomous turns. A runner emits the full capability
and authoritative snapshot after every session open or resume. Missing v1
capability is unsupported; clients do not infer support from an adapter name.
Harness credential updates
auth.credentials.updated is a P0 runner event available in the v1, v2, and v3 event
schemas. Its payload uses paperclip.auth.credentials.updated.v1 and contains
only provider, bindingId, revision, and detection. No tokens, account
identifiers, credential paths, or credential fingerprints are permitted.
An updated consumer opts in with observeCredentials: true in run.prepare,
before session.open. The bundled runner transport opts in for fresh sessions;
set its observeCredentials option to false to disable observation for a
fresh session. Older hosts that omit the field receive no new event. Consumers
must update their schemas before opting in: an event-enum addition is not an
unknown optional property. Existing runner binaries ignore the optional flag
and do not provide observation; absence of an event does not establish support.
The current Unix runner observes native Codex's managed CODEX_HOME/auth.json
and the Codex/Grok ACPX session homes. It uses a non-recursive directory watch
plus a one-second polling fallback, so atomic file replacement is handled.
Grok's initial inline subscription credential is the baseline, allowing a
refresh during launcher startup to be detected. A first valid credential file
without a prior baseline establishes the baseline without claiming a refresh.
Account identity changes also emit updates, even when token values stay the
same, and establish the baseline for later refreshes on the new account.
Hosts must evaluate the current credential through their private credential
channel and account checks; the event does not authorize an account switch.
Metadata-only changes, partial writes, and deletion do not emit updates.
Unsupported harnesses and refreshes retained only in memory need
their own observer or native-hook integration; adding this event does not make
them observable.
bindingId: "harness-auth" identifies the selected harness authentication
within the envelope's normalized session. Revisions increase for that binding
and survive runner restarts and warm run attachments. The baseline fingerprint
and pending event are persisted together in a private runner state file. Source
retries retain the same event identity until the durable PRP outbox accepts it.
Hosts should commit an idempotent reaction or durable work item through
onCommittedEvent before returning and advancing the cumulative ACK.
The bundled transport exposes onCredentialsUpdated(event) for this commit.
It awaits the callback before ACK, including during warm idle, attachment, and
provider cleanup. Callback failures leave delivery unacknowledged for retry;
callbacks must therefore deduplicate by the original source event identity.
When configured, credential updates bypass the turn notification queue.
Paperclip commits them directly to the run log in a separate credential source
namespace, preserving the original PRP envelope and avoiding collisions with
the driver's normalized event sequence. A turn-only notification consumer
cannot reliably handle idle or cleanup updates; use this callback instead.
detection: "credential_store" reports an observed credential change, not proof
that an OAuth refresh succeeded. Multiple changes between observations can be
coalesced; this is not an audit of every refresh exchange. The schema also
allows native_hook for integrations with an explicit signal. Observation
continues during warm idle and checks at turn terminal and close boundaries,
including Grok's private refresh handoff after live-store cleanup. Retained
runner observations enter the durable outbox before a suspend or shutdown
command completes, without draining the provider backlog. A final check after
provider cleanup also enters the outbox and waits for the host ACK. The runner
retains its terminal recovery fence if that delivery fails.
The event authorizes no credential access or write on its own. A host that needs rotated token values must use a separately authorized handoff with its existing account-identity and freshness safeguards. The default Paperclip credential copy-back behavior remains in place.
Scope
The first provider descriptor and adapter fixture cover Codex only. The schemas for provider-neutral events and semantic receipts do not enable those actions. Discovery and authorization are separate contracts.
The conformance manifest records every source file and its SHA-256 digest. Run
pnpm generate:protocol-manifest from this package after a source change. CI
runs the same generator with --check to reject drift. This check also compiles
the JSON Schemas and validates every replay, question, and cross-language
conformance fixture against its declared schema.
The files in fixtures/replay/golden/ are deterministic reducer oracles. Each
accepted replay fixture has a complete session snapshot and a compact parity
summary. pnpm generate:replay-goldens updates them after an intentional
reducer change; package build and CI fail when they drift.
The files in fixtures/local-runner/scripts/ drive the package-local fake
harness. They cover successful, failed, interrupted, interactive, duplicate
terminal, process-cleanup, and oversized-frame behavior without starting a
production adapter.
runtime.activity.recorded is a P1 Runner event in v1, v2 and v3 with exactly
{ namespace, activityKey }. Both opaque identifiers contain 1–160 Unicode code
points and exclude C0 controls and DEL. namespace groups a producer's activity
types; activityKey names an activity within that group. Consumers use the pair
to select a response to activity in the run. The authenticated outer envelope
provides run and session identity, source sequence and emission time. Core resolves
the run's company, task and agent through its existing authorized run binding;
callers cannot supply those identities in the payload. Recording activity does
not independently verify the reported action or grant access to any resource.
The event uses the ordinary durable outbox, acknowledgement and replay contract.
Local clients capture an opaque context with paperclip-runnerd notification-context
before an operation and invoke record-activity CONTEXT NAMESPACE ACTIVITY_KEY
after success. Runner publishes its matching absolute executable as host-owned
PAPERCLIP_RUNTIME_NOTIFICATION_HELPER and the stable endpoint descriptor path
as PAPERCLIP_RUNTIME_NOTIFICATION_CONTEXT. Configured task environment cannot
override either value. Context is invalidated on warm attachment and process
recovery, so a caller cannot attribute a later completion to a different run.