## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Adapter packages are the bridge between the control plane and local agent harnesses such as Claude Code, Codex, and Gemini CLI. > - ACP support was concentrated in a separate `acpx_local` adapter, which made ACP feel like a separate agent choice instead of an execution capability of the harness adapters. > - Claude, Codex, and Gemini now have ACP-capable harnesses, so the native adapter should own ACP selection, fallback, config, transcript parsing, and environment diagnostics. > - The standalone ACPX adapter still needs a compatibility path for existing rows, but it should not be offered as an active adapter for new agents. > - This pull request moves the shared ACP runtime into `@paperclipai/acpx-engine`, wires Claude/Codex/Gemini local adapters to prefer ACP when prerequisites are available, and retires `acpx_local` to a tombstone. > - The benefit is one adapter per harness, richer ACP transcripts by default where possible, and a migration path for existing Claude/Codex ACPX agents. ## Linked Issues or Issue Description Closes #5932 — the broken default `acpx_local` Claude path is replaced by native `claude_local` ACP support, existing Claude/Codex ACPX rows migrate to native adapters, and new agents no longer choose the standalone ACPX adapter. Refs #4893 — original merged ACPX local adapter runtime that this PR replaces with native per-harness ACP engines. Refs #6590 — prior ACPX-Claude seamlessness work folded into the new native Claude ACP path. Refs #197 — related open generic ACP/Kiro adapter work; this PR does not close it because Kiro/custom generic ACP remains a separate adapter decision. Refs #7018 — related Kimi-specific `acpx_local` shell failure; this PR retires the built-in standalone adapter but does not add a native Kimi adapter. Refs #8864 — related ACPX prompt/API guidance PR; this PR moves runtime guidance into the shared/native ACP engine path instead of the old standalone adapter. Refs #8881 — related `acpx_local` POSIX shell failure from the old `acpx` pin; this PR updates ACP dependencies but does not claim custom/OMP ACP support as a first-class native adapter. Refs #8964 — related open `acpx_local` stderr cleanup PR; this PR makes the old runtime path obsolete for new agents but keeps it as a non-closing reference. Problem description: - The standalone `acpx_local` adapter duplicates Claude/Codex agent choices that already have first-class local adapters. - ACP should be an execution engine capability of each harness adapter when the underlying harness supports ACP. - Existing `acpx_local` agents should either migrate to native harness adapters or fail with an explicit retirement message instead of silently falling back to the process adapter. ## What Changed - Added `@paperclipai/acpx-engine` as the shared ACP execution, session-codec, CLI formatter, and UI parser package. - Wired `claude_local`, `codex_local`, and `gemini_local` to auto-select ACP by default when prerequisites pass, with `engine=cli` opt-out and `engine=acp` strict mode. - Added ACP config schema/UI fields, environment checks, session-codec preservation, transcript parsing, and adapter capability metadata for the native adapters. - Retired `acpx_local` to a server tombstone, removed its UI/package/runtime image surface, and added a migration for existing Claude/Codex ACPX agents. - Updated package manifests, lockfile, release tooling, docs, Kubernetes sandbox defaults, and tests. ## Verification - `corepack pnpm --filter @paperclipai/acpx-engine typecheck` - `corepack pnpm --filter @paperclipai/adapter-claude-local typecheck` - `corepack pnpm --filter @paperclipai/adapter-codex-local typecheck` - `corepack pnpm --filter @paperclipai/adapter-gemini-local typecheck` - `corepack pnpm --filter @paperclipai/acpx-engine exec vitest run` - `corepack pnpm --filter @paperclipai/adapter-claude-local exec vitest run src/server/acp.test.ts src/server/execute.acp-fallback.test.ts src/ui/build-config.test.ts` - `corepack pnpm --filter @paperclipai/adapter-codex-local exec vitest run src/server/acp.test.ts src/ui/build-config.test.ts` - `corepack pnpm --filter @paperclipai/adapter-gemini-local exec vitest run src/server/acp.test.ts src/ui/build-config.test.ts src/ui/parse-stdout.test.ts` - `corepack pnpm --filter @paperclipai/plugin-sdk ensure-build-deps && corepack pnpm --filter @paperclipai/server exec tsc --noEmit` - `corepack pnpm --filter @paperclipai/server exec vitest run src/__tests__/adapter-routes.test.ts src/__tests__/adapter-session-codecs.test.ts src/__tests__/adapter-models.test.ts` - `corepack pnpm --filter @paperclipai/ui typecheck` - `corepack pnpm --filter @paperclipai/ui exec vitest run src/adapters/metadata.test.ts src/adapters/adapter-display-registry.test.ts src/components/AgentConfigForm.test.ts src/components/AgentConfigForm.render.test.tsx src/components/transcript/RunTranscriptView.test.tsx` - `node --test scripts/bootstrap-npm-package.test.mjs scripts/release-package-map.test.mjs scripts/verify-release-registry-state.test.mjs` Note: the server typecheck script calls `pnpm` internally; this dev shell exposes pnpm through Corepack only, so I ran the two script steps manually with `corepack pnpm`. ## Risks - Migration changes existing `acpx_local` Claude/Codex agents to native adapter types and clears old ACPX task sessions/runtime state. - Custom ACP commands remain on the retired tombstone and will need a separate future adapter/plugin path. - ACP auto-selection depends on local Node and ACP server command prerequisites; remote and unsupported environments fall back to CLI unless `engine=acp` is explicit. - `@paperclipai/acpx-engine` is a new public package and needs npm trusted-publishing bootstrap before release automation can publish it. > For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and discuss it in `#dev` before opening the PR. Feature PRs that overlap with planned core work may need to be redirected — check the roadmap first. See `CONTRIBUTING.md`. ## Model Used OpenAI GPT-5 via Codex coding agent. Exact hosted model build and context-window size are not exposed in this runtime. Tool use included shell execution, repository editing, GitHub CLI operations, and local test/typecheck execution. ## 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 - [x] All Paperclip CI gates are green - [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups - [x] I will address all Greptile and reviewer comments before requesting merge --------- Co-authored-by: Paperclip <noreply@paperclip.ing>
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Publishing to npm
Low-level reference for how Paperclip packages are prepared and published to npm.
For the maintainer workflow, use doc/RELEASING.md. This document focuses on packaging internals.
Current Release Entry Points
Use these scripts:
scripts/release.shfor canary and stable publish flowsscripts/create-github-release.shafter pushing a stable tagscripts/rollback-latest.shto repointlatestscripts/build-npm.shfor the CLI packaging build
Paperclip no longer uses release branches or Changesets for publishing.
Why the CLI needs special packaging
The CLI package, paperclipai, imports code from workspace packages such as:
@paperclipai/server@paperclipai/db@paperclipai/shared- adapter packages under
packages/adapters/
Those workspace references are valid in development but not in a publishable npm package. The release flow rewrites versions temporarily, then builds a publishable CLI bundle.
build-npm.sh
Run:
./scripts/build-npm.sh
This script:
- runs the forbidden token check unless
--skip-checksis supplied - runs
pnpm -r typecheck - bundles the CLI entrypoint with esbuild into
cli/dist/index.js - verifies the bundled entrypoint with
node --check - rewrites
cli/package.jsoninto a publishable npm manifest and stores the dev copy ascli/package.dev.json - copies the repo
README.mdintocli/README.mdfor npm metadata
After the release script exits, the dev manifest and temporary files are restored automatically.
Package discovery and versioning
Public packages are discovered from:
packages/server/ui/cli/
The version rewrite step now uses scripts/release-package-map.mjs, which:
- finds all public packages
- sorts them topologically by internal dependencies
- rewrites each package version to the target release version
- rewrites internal
workspace:*dependency references to the exact target version - updates the CLI's displayed version string
Those rewrites are temporary. The working tree is restored after publish or dry-run.
@paperclipai/ui packaging
The UI package publishes prebuilt static assets, not the source workspace.
The ui package uses scripts/generate-ui-package-json.mjs during prepack to swap in a lean publish manifest that:
- keeps the release-managed
nameandversion - publishes only
dist/ - omits the source-only dependency graph from downstream installs
After packing or publishing, postpack restores the development manifest automatically.
Manual first publish for @paperclipai/ui
If you need to publish only the UI package once by hand, use the real package name:
@paperclipai/ui
Recommended flow from the repo root:
# optional sanity check: this 404s until the first publish exists
npm view @paperclipai/ui version
# make sure the dist payload is fresh
pnpm --filter @paperclipai/ui build
# confirm your local npm auth before the real publish
npm whoami
# safe preview of the exact publish payload
cd ui
pnpm publish --dry-run --no-git-checks --access public
# real publish
pnpm publish --no-git-checks --access public
Notes:
- Publish from
ui/, not the repo root. prepackautomatically rewritesui/package.jsonto the lean publish manifest, andpostpackrestores the dev manifest after the command finishes.- If
npm view @paperclipai/ui versionalready returns the same version that is inui/package.json, do not republish. Bump the version or use the normal repo-wide release flow inscripts/release.sh.
If the first real publish returns npm E404, check npm-side prerequisites before retrying:
npm whoamimust succeed first. An expired or missing npm login will block the publish.- For an organization-scoped package like
@paperclipai/ui, thepaperclipainpm organization must exist and the publisher must be a member with permission to publish to that scope. - The initial publish must include
--access publicfor a public scoped package. - npm also requires either account 2FA for publishing or a granular token that is allowed to bypass 2FA.
Version formats
Paperclip uses calendar versions:
- stable:
YYYY.MDD.P - canary:
YYYY.MDD.P-canary.N
Examples:
- stable:
2026.318.0 - canary:
2026.318.1-canary.2
Publish model
Canary
Canaries publish under the npm dist-tag canary.
Example:
paperclipai@2026.318.1-canary.2
This keeps the default install path unchanged while allowing explicit installs with:
npx paperclipai@canary onboard
The release script now verifies two things after a canary publish:
- the
canarydist-tag resolves to the version that was just published - every published internal
@paperclipai/*dependency referenced by that manifest exists on npm
It also treats latest -> canary as a failure by default, because npm metadata can otherwise leave the default install path pointing at an unreleased canary dependency graph. Only pass ./scripts/release.sh canary --allow-canary-latest when that latest behavior is explicitly intended.
Stable
Stable publishes use the npm dist-tag latest.
Example:
paperclipai@2026.318.0
Stable publishes do not create a release commit. Instead:
- package versions are rewritten temporarily
- packages are published from the chosen source commit
- git tag
vYYYY.MDD.Ppoints at that original commit
Trusted publishing
The intended CI model is npm trusted publishing through GitHub OIDC.
That means:
- no long-lived
NPM_TOKENin repository secrets - GitHub Actions obtains short-lived publish credentials
- trusted publisher rules are configured per workflow file
See doc/RELEASE-AUTOMATION-SETUP.md for the GitHub/npm setup steps.
Release enrollment for new public packages
Paperclip does not auto-publish every non-private workspace package anymore.
CI publishing is controlled by scripts/release-package-manifest.json.
When you add a new public package:
- add it to the manifest and decide whether CI should publish it immediately
- if CI should publish it, bootstrap the package on npm before merge
- if CI should not publish it yet, keep
"publishFromCi": false - only enable
"publishFromCi": trueafter npm trusted publishing is configured for that package
PR CI now checks changed release-enabled package manifests against npm. That catches a missing first-publish bootstrap before the change reaches master.
One-time bootstrap sequence for a new package
The first publish of a brand-new package still needs one human maintainer with npm write access. After that, trusted publishing can take over.
Example for a newly added public package from the repo root:
# safe preview
pnpm run release:bootstrap-package -- @paperclipai/new-package
# one-time first publish from an authenticated maintainer machine
pnpm run release:bootstrap-package -- @paperclipai/new-package --publish --otp 123456
The helper script:
- checks that the package does not already exist on npm
- builds the target package unless
--skip-buildis passed - runs
pnpm publish <package-dir> --dry-run --no-git-checks --access publicfrom the repo root - only runs the real
pnpm publish <package-dir> --no-git-checks --access publicwhen--publish --otp <code>is provided
The helper intentionally uses pnpm publish instead of npm publish so workspace
dependencies and publishConfig export fields are normalized before the package
is sent to the registry.
For the real --publish step, the maintainer machine must already be authenticated to npm.
If npm whoami returns 401, first run npm logout --registry=https://registry.npmjs.org/ to clear any stale local auth, then run npm login or npm adduser locally as an npm org member, and finally rerun the helper.
That local human auth is fine for the one-time bootstrap publish; we just do not want the same auth model inside CI.
The helper now requires --otp <code> up front for --publish, so it fails before the real publish attempt if the one-time password is missing.
After that first publish succeeds:
- open
https://www.npmjs.com/package/@paperclipai/new-package - go to
Settings→Trusted publishing - add repository
paperclipai/paperclip - set workflow filename to
release.yml - optionally go to
Settings→Publishing accessand enableRequire two-factor authentication and disallow tokens - keep
publishFromCi: trueinscripts/release-package-manifest.json
Once those steps are done, future canary and stable publishes for that package are automated through GitHub OIDC. The manual step is only the first package creation on npm.
Rollback model
Rollback does not unpublish anything.
It repoints the latest dist-tag to a prior stable version:
./scripts/rollback-latest.sh 2026.318.0
This is the fastest way to restore the default install path if a stable release is bad.