5 Commits
Author SHA1 Message Date
DottaandClaude Opus 5.5 2575b941d0 feat(task-chat): show hook and auto-review decisions as governance rows (#19266)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - Agents run on harnesses such as Codex and Claude, and the task chat
shows what each run did
> - Harnesses make automatic decisions: hooks block or allow tool calls,
and Codex auto-review approves or denies actions
> - Today Paperclip drops these decisions or shows them as generic rows.
Codex `safety.review.*` always says `decision: "unknown"`, the native
Rust runner drops `hook/*` and `item/autoApprovalReview/*`, and
claude-agent-acp drops Claude hook messages
> - An operator cannot see why an agent changed course or which action
ran without a person's approval. This conflicts with Paperclip's
approval-gate model
> - This pull request records each hook and review decision with its
reason and shows it as a small governance row in the task chat
> - The benefit is that automatic decisions become auditable, and a
blocked action explains itself without opening run logs

## Linked Issues or Issue Description

Refs #19252 (precedent: canonical `plan.updated` events rendered as a
task-chat card).
Builds on #19259 (ACP `_meta` passthrough from ACPX), now merged.

**Subsystem affected**
Runner provider events (Rust native Codex normalizer, TS drivers, ACPX
sidecar), the claude-agent-acp patch, the PRP provider-event schema, and
the task chat activity UI.

**Problem or motivation**
Hook and auto-review outcomes reach Paperclip but are lost or flattened.
Codex reviews always record an unknown decision. Native Codex runs drop
hook and review notifications in the Rust normalizer. Claude hook
messages never leave the adapter. Codex reuses one `run.id` for every
call of a hook, and the id contains a host path.

**Proposed solution**
Map the real outcome, decision, action, risk and reason into additive
optional fields on `paperclip.hook.v1` and `paperclip.safety.review.v1`.
Forward Claude SDK hook messages. Render small grey rows: a stopped
action is tinted and shows its reason, an approved review folds into the
command it approved as an "auto-approved" mark, and routine hook passes
stay out of activity summaries.

**Alternatives considered**
Separate rows for every approval. This duplicated each approved command,
so approvals fold into the command row instead.

## What Changed

- Runner (Rust): new `governance_events.rs`.
`normalize_codex_notification` now maps `hook/started|completed` and
`item/autoApprovalReview/started|completed`. Each hook call gets its own
id (a digest of the run id and start time), so no host path is stored.
- Runner (TS): new `governance-events.ts` with the same mapping for the
TS Codex driver, and the Claude hook mapping. The ACPX sidecar publishes
Claude hook updates as schema-validated `hook.*` rich events.
- claude-agent-acp patch: turns on `includeHookEvents` and forwards
`hook_started` / `hook_response` on
`session_info_update._meta.claudeCode.hook`, with bounded output.
- Protocol: additive optional fields. Hook records get `outcome`,
`message`, `source` and `toolName`, and the `blocked` and `stopped`
statuses. Review records get `actionKind`, `action`, `riskLevel`,
`userConsent` (the reviewer's user-authorization level; keys that end in
"authorization" are redacted as secrets), `rationale` and `decidedBy`,
and the `timed_out` and `aborted` decisions. Regenerated the manifest
and validators.
- Fixed: the hook `blocking` flag read `executionMode === "blocking"`,
but Codex sends `sync` / `async`.
- UI: `native-run-events` keeps the full hook and review payloads.
`governance-presentation.ts` writes the row labels.
`fold-auto-reviews.ts` attaches an approved review to its command row.
The rows show the tint, the reason line and the "auto-approved" mark.
Activity summaries lead with a block or denial.
- Storybook: "Task chat / Governance rows" shows every outcome, a Codex
run, a Claude run and the live line.
- Docs: added a governance activity section to
`packages/paperclip-runner/docs/protocol-compatibility.md`.

## Verification

- `pnpm --filter @paperclipai/paperclip-runner exec vitest run
src/governance-events.test.ts src/provider-events.test.ts
src/drivers/codex src/drivers/acpx src/cli`. 2305 tests pass. This
includes a replay of real Codex 0.160 notifications from a session with
hooks and auto-review
(`test-fixtures/governance/codex-0.160-hooks-auto-review.json`,
sanitized).
- `cargo test --release -p paperclip-runner-core`. The full suite
passes, and `governance_events::tests` replays the same fixture.
- `cd ui && npx vitest run`. 11,047 tests pass.
- `node scripts/typecheck-low-memory.mjs`, `pnpm check:token-gates`, and
the runner contract checks (`check:protocol-manifest`,
`check:protocol-types`, `check:capability-contract`,
`check:protocol-coverage`, replay goldens, contract fingerprints) pass.
- Live test on a local isolated instance. A Codex agent and a Claude
agent each used a preconfigured home with a PreToolUse hook that blocks
edits to `0001_init.sql`, plus UserPromptSubmit and PostToolUse hooks.
Both runs showed "PreToolUse hook blocked a tool call" (Codex) or
"PreToolUse hook blocked Bash" (Claude), with the hook's message. They
also showed "UserPromptSubmit hook added context", and the group summary
started with the block.
- Auto-review cannot run in Paperclip today, because the native Codex
runner only allows `approvalPolicy: never`. The review mapping and the
approval fold are proven against real Codex 0.160 app-server output
(fixture above) and in Storybook.

## Risks

- Low risk to execution. These records are display-only and carry no
authority. All new schema fields are optional, so older records stay
valid and older UIs ignore the new fields.
- The `auto-approved` fold depends on `targetItemId` matching the
command's execution id. Real Codex 0.160 data confirms that it matches.
When there is no match, the review stays as its own row.
- In Paperclip's isolated homes, hooks do not run, because the runner
never copies hooks into an isolated home. Rows appear only for agents
with a preconfigured home, or with future managed hooks.
- The claude-agent-acp patch changes. The ACPX profile check still
passes, because the patch is Paperclip's ACPX layer and not the upstream
release.

## Model Used

- Claude Opus 5.5 (`claude-opus-5-5`) in Claude Code, with tool use
(shell, browser and file editing) and extended reasoning.

## 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
- [ ] 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 <[email protected]>
2026-11-05 14:35:57 -06:00
DottaandClaude Opus 5.5 1eff07f29e feat(task-chat): show Claude subagents as a collapsible tree in the runner turn (#19264)
## 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 <[email protected]>
2026-11-05 18:58:35 +00:00
Nicky Leach e61ee4b005 fix(runner): preserve Claude user settings trust in HOME (#17826) 2026-10-26 18:02:15 -07:00
DottaandPaperclip 422287eecd fix: preserve runner recovery, warm sessions, and task outcomes (#13338)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - The native runner connects task messages, provider execution, and
task outcomes.
> - First-time user tests exposed gaps in recovery, completion
permissions, message delivery, and Stop behavior.
> - These gaps left usable output hidden, completed work waiting for
bookkeeping, or safe work unable to continue.
> - This pull request fixes the shared lifecycle and receipt paths while
preserving process ownership and action checks.
> - Users can continue work with accurate task state and durable
messages.

## Linked Issues or Issue Description

**What happened?**

A stopped local Codex execution could remain blocked even after its
processes had stopped and its complete transcript proved that no
external action needed replay. Claude under Conservative permissions
could fail to call task completion tools. Recovery could reuse an
assistant item ID and overwrite prior output. A delivered comment could
remain marked uncertain after navigation. Stop could look like Pause or
a new recovery incident. Workspace contention could look like
cancellation. A direct reply reopening Done could enter a clarification
loop.

**Expected behavior**

Recover automatically only with verified termination and complete action
receipts. Preserve answers and messages. Keep task completion available
under Conservative permissions without broad tool access. Show crashes
as Blocked, actual human decisions as In Review, and ordinary workspace
contention as waiting. Stop the current response and allow a new
direction.

**Steps to reproduce**

1. Create ordinary response tasks with local Codex and Claude Code, then
send follow-up messages through the task composer.
2. Interrupt a disposable local Codex runner during text-only work.
Verify automatic continuation and retained output.
3. Stop a response, send a new request, answer a clarification, and
reopen completed work with another message.
4. Navigate or reload while a comment submission is pending. Confirm the
exact persisted request receipt settles it without removing newer draft
text.
5. Run two tasks in a shared Daytona workspace. Confirm waiting does not
appear as failure.

**Paperclip version or commit**

Initial acceptance baseline: `c9021c6721f91e2c74bd9fee9d3fd41c999d17b7`.
Current integration base: `6cef9743c`. Both operator-interruption and
workspace-waiting guards are preserved; native restart and legacy
permission rules remain documented.

**Deployment mode**

An isolated source-built test-drive instance, with real local Codex and
Claude Code providers and disposable Daytona environments.

Related work: #13314, #13316, #13327, #13344, #13239, #13254, #13163.
This PR addresses additional failures from ordinary task journeys,
including controller restart handoff and repeated warm sandbox setup.
Historical task status reconciliation is excluded.

## What Changed

- Persist runner ownership immediately at spawn and resume an explicitly
adopted runner even when the controller crashed before the first driver
checkpoint. Detach the controller safely across graceful restarts,
including session startup. Prevent an old finalizer from suspending or
signaling an adopted runner. Checkpoint idle warm sessions before
shutdown. Preserve the same run and queued follow-up messages.
- Scope saved legacy queue successor checks to the queue owner while
preserving ordinary task locks, operator identity, assignment gates, and
exactly-once delivery.
- Preserve managed Codex credential files when an old session is
detached for restart; normal owned cleanup still copies refreshed auth
back and removes the scoped copy.
- Reuse the bound warm shared sandbox and fully verify an existing
staged provider pack before using it. This avoids repeated uploads when
the pack is already valid.
- Add a narrow local Codex replacement path with stopped-process proof,
a closed transcript inventory, exact completion receipts, and
fresh-session lineage. Preserve no-replay holds when evidence is
incomplete. Recovery may clear only the same run's recorded Blocked
status version; manual re-blocking and dependency changes invalidate
that receipt, while queued comments do not. Later blocks stop scheduled,
queued, and final dispatch; queued/final checks re-read dependencies
even when the task status stays In Progress.
- Permit only task delivery and human-input tools through the isolated
Claude runner's exact task bridge.
- Scope assistant item identity to the provider turn and ignore only
authority-free Codex skill-change notifications during startup.
- Reconcile composer submissions by client request ID across response
loss, navigation, and reload. Retain text typed during delivery.
- Keep acknowledged run-only Stop neutral and show workspace contention
as waiting. Project exhausted native failures as Blocked.
- Restore the guarded task-page retry action for failed legacy runs,
including the server-supported explicit new-attempt path for stopped
conversation adapters. Preserve native/process recovery holds and avoid
promising Retry while a decision or execution gate hides it.
- Refresh delivered artifacts and handle direct user replies that reopen
completed work without a clarification loop.
- Check the embedded PostgreSQL PID, data directory, and actual port
before connecting or migrating.
- Document accepted behavior and add focused regressions at lifecycle,
route, transcript, and UI boundaries.

## Verification

- Final head `fece606ac2` passes the complete GitHub CI matrix: **34
green checks, two expected Storybook skips, no failures or pending
checks**, including `ci / verify`, `ci / e2e`, full runner verification,
typecheck, build, every server/workspace shard, and all browser shards.
[CI
run](https://github.com/paperclipai/paperclip/actions/runs/34727183287).
Greptile is **5/5 with no open findings**. The final two commits only
refine test fixtures; both affected suites pass 24/24 locally and in CI,
with server typecheck green.
- Complete local Vitest coverage uses the canonical groups/shards: all
635 general server suites, all 145 serialized suites, and all workspace
packages. The aggregate began on `0a8001c18` while the final queue fix
arrived: 23,903 passed, five failed, 87 skipped. The five
port/socket/timing failures passed unchanged in follow-ups (60 tests in
the exposure/file suites and 412 tests covering the serialized failures
and unrun tails). The final queue/operator-identity suites separately
passed 52/52. This is aggregate coverage plus explicit reruns, not a
pristine single-command final-head run.
- After integration with current master,
queue/operator-identity/continuation suites passed 162/162 and affected
UI suites passed 140/140. ACP Stop/continuation and legacy
task/Inbox/message browser suites passed 9/9, including both task
recovery Retry and thread Try again, automatic saved-message delivery,
exactly one new run, Done, and retained output after reload. The default
process Stop/Pause/Resume browser case passed (the native-provider case
is opt-in and skipped by default). The complete Board attachment/receipt
browser suite passed 11/11 on a disposable instance, covering both
composers, exact receipts after lost responses, no replay, bound
attachments, and newer drafts after reload.
- Blocking-intent regressions cover pre-existing Blocked, a mismatched
run/cause, an explicit manual re-block, changed dependencies, a queued
comment after failure, and a block arriving between scheduling and
provider dispatch. The negative cases reproduced before the fix. All 478
affected executor/recovery/dispatch tests passed; both database suites
ran separately after availability-probe skips in the first combined
command. The final late-dependency check passed all 143 affected
recovery/dispatch tests (zero skips) after two new negative cases
reproduced the bug.
- Focused runtime regressions cover awaited runner ownership
publication, authenticated adoption before the first checkpoint,
old-finalizer detachment, idle and busy warm-session shutdown, rejected
checkpoint propagation, provider-pack verification, and managed-Codex
credential preservation. Four managed credential detachment cases
reproduced the bug before the fix; normal owned cleanup still succeeds
exactly once.
- Live local Claude: SIGKILL 2.6 seconds into startup recovered the same
run automatically in 53 seconds, then a normal follow-up completed in 24
seconds. SIGTERM 2.5 seconds into startup preserved the same run (54
seconds) and its queued follow-up (21 seconds). Answers remained visible
and the task reached Done.
- Live Claude Daytona: a warm follow-up retained its sandbox and fell
from 121 seconds to 44 seconds. A separate cold turn took 127 seconds;
after controller shutdown and checkpointing, its follow-up completed in
33 seconds with the same sandbox, workspace, native session, and runner.
Both answers remained visible and the task was Done.
- Other live journeys covered task completion and follow-up with local
and Daytona Codex, local Codex crash recovery, Stop then new direction,
clarification response, live artifact refresh, and shared-workspace
waiting.
- Validation limits: the opt-in native composer Stop/Pause→subtree
Resume fixture exposes terminal/result ordering and subtree-cancellation
attribution bugs that can leave a child task blocked; that new finding
is assigned to a separate follow-up and is not claimed fixed here.
Default CI skips this optional native-provider fixture. Managed-Codex
credential handoff and the queue-agent integration use automated
regression evidence. Cold custom provider-pack uploads still add startup
latency.

## Risks

- Automatic replacement remains deliberately narrow: local Codex,
verified stopped identities, unchanged retained state, and a complete
text/completion-only turn. Unknown actions, partial history, or changed
ownership remain blocked.
- Claude completion permission handling changes an upstream package
patch. The exact isolated task bridge must remain pinned; unrelated
tools keep their existing permissions.
- New task failure projection changes user-visible status. No historical
status backfill or database migration is included.
- This is a broad lifecycle fix across server and UI. Live proof covers
graceful local Claude restart during startup and idle Claude Daytona
session recovery across controller shutdown. Live abrupt SIGKILL during
local Claude startup also recovered the same run. Unknown ownership or
missing action evidence still blocks reuse. Cold custom provider-pack
uploads still add startup latency; this change avoids unnecessary repeat
uploads.

## Model Used

OpenAI GPT-6 (Codex), with reasoning, code execution, browser
automation, and tool use. The exact hosted model ID and context window
are not exposed in this task.

## 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 <[email protected]>
2026-09-12 19:41:15 -05:00
Michael NguyenandPaperclip dfdfc8664e feat(claude-local): add Claude Fable 5.1 support (#12730)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - The Claude local adapter lets operators select a Claude model for an
agent.
> - Claude Fable 5.1 was absent from the adapter model lists.
> - The adapter runtime also used a Claude Code build that rejected
Fable 5.1.
> - This pull request adds the direct Anthropic ID and the AWS Bedrock
inference profile ID.
> - It also updates the Claude ACP runtime and keeps the Paperclip usage
and isolation patches.
> - The benefit is that operators can select and run Claude Fable 5.1
through the Claude adapter.

## Linked Issues or Issue Description

Refs #8810. That issue covers related model ID handling. This change
does not change provider-prefixed model IDs.

**Agent or provider**

Claude Code through the built-in `claude_local` adapter. The requested
model is Claude Fable 5.1.

**Why this adapter is useful**

Operators can use Fable 5.1 without entering an undocumented model ID.
The configured model also reaches both supported Claude execution lanes.

**How the agent is invoked**

The CLI lane sends `--model claude-fable-5-1`. The ACP lane sends
`ANTHROPIC_MODEL=claude-fable-5-1` to
`@agentclientprotocol/claude-agent-acp`.

**Are you willing to implement it?**

Yes. This pull request includes the implementation and tests.

**Additional context**

Claude Code 2.1.232 rejected Fable 5.1 and required version 2.1.251 or
newer. ACP package 0.73.0 includes Claude Code 2.1.257. The update keeps
Paperclip's usage metadata and isolated-context behavior.

## What Changed

- Added `claude-fable-5-1` to the direct Claude fallback list.
- Added `us.anthropic.claude-fable-5-1` to the AWS Bedrock list.
- Kept the existing default model at the first position in each list.
- Updated the Claude ACP dependency from 0.70 to 0.73.
- Carried the Paperclip usage and isolated-context changes into the 0.73
patch.
- Added a Claude Code 2.1.251 minimum-version preflight for Fable 5.1
when using the standard `claude` executable, surfaced in both adapter
Test and execution. Explicit custom wrappers retain their existing
compatibility contract.
- Kept local adapter Tests from executing caller-selected binaries: when
runtime `PATH` selects a different Claude executable than the trusted
probe, the Test warns and defers the authoritative version check to
execution instead of approving or rejecting the alternate installation.
- Added tests for model listing, discovery deduplication, Bedrock
filtering, model pass-through in both execution lanes, old-CLI rejection
before launch, custom-wrapper compatibility, and local runtime-PATH
mismatch handling.

## Verification

- `pnpm --filter @paperclipai/adapter-claude-local typecheck`
- `pnpm exec vitest run
packages/adapters/claude-local/src/server/execute.remote.test.ts
packages/adapters/claude-local/src/server/test.remote.test.ts
packages/adapters/claude-local/src/server/test.probe.test.ts
packages/adapters/claude-local/src/server/acp.test.ts
server/src/__tests__/adapter-models.test.ts` (72 tests passed)
- `node --test scripts/acpx-patch-packaging.test.mjs` (13 tests passed)
- `pnpm -r typecheck`
- `pnpm build`
- A local Paperclip agent run completed with `usageJson.model` set to
`claude-fable-5-1` through ACP 0.73.0 and its bundled Claude Code
2.1.257.
- `pnpm test:run` completed 5,638 passing tests and 24 skipped tests. It
also found 24 failures in unrelated workspace-runtime,
path-canonicalization, and runtime-exposure tests on macOS with Node 26.
These failures do not touch this diff. Clean pull request CI is the
final full-suite gate.

## Risks

- The ACP dependency update can change Claude runtime behavior outside
model selection. Focused ACP tests, the full typecheck, the production
build, and a real local Fable run reduce this risk.
- The 0.73 patch must stay aligned with the installed ACP version.
Dependency-resolution CI verifies the manifest and patch pair.
- Fable 5.1 adds a short `claude --version` preflight to standard
CLI-lane Tests and runs. The result is intentionally not cached so an
in-place Claude Code upgrade takes effect without restarting Paperclip.
Explicit custom wrappers are not version-probed because their output and
compatibility contract can differ from the standard executable.
- Local Tests preserve the existing deny-by-default probe boundary and
do not execute a binary selected by caller-controlled `PATH`. A
mismatched runtime binary produces an explicit warning without blocking
an otherwise valid setup; execution independently validates the actual
runtime-selected CLI before launch.
- The AWS Bedrock identifier differs from earlier IDs because Fable 5.1
has no `-v1` suffix. The model-list test locks this exact value.
- There is no schema change or migration.

> 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

Provider: OpenAI. Model: GPT-5 Codex. The host did not expose a more
specific model ID or context-window size. Capabilities used: agentic
reasoning, repository editing, shell execution, web research, and local
runtime verification.

## 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 <[email protected]>
2026-09-02 14:32:01 -07:00