---

summary: "Overview and quickstart for @tryinget/pi-provenance." read_when:

• "Starting work in this package workspace."
• "You need Pi-owned assistant-message/session provenance for review-lane or runtime evidence." system4d: container: "Monorepo package for Pi runtime provenance helpers." compass: "Keep source-owned Pi session/message facts reusable without turning downstream governance systems into the source of runtime truth." engine: "Extract minimal persisted assistant-message provenance -> copy into caller evidence -> validate package." fog: "Main risk is accidentally capturing full prompts/provider payloads or making AK/orchestrator the source owner for Pi runtime facts."

---

@tryinget/pi-provenance

Pi assistant-message/session provenance helpers for source-owned runtime evidence.

• Workspace path: packages/pi-provenance
• Release component key: pi-provenance
• Release config mode: component

Why this package exists

Pi already persists assistant-message provenance in session JSONL entries: provider, model, API, stop reason, usage, response id when available, and stable session/message entry refs.

Downstream systems often need those facts without becoming their source owner. This package owns the small Pi-side extraction seam:

Pi session JSONL assistant message
-> minimal provenance block
-> copied by review runners / orchestrators / evidence writers

It does not own AK decision closure, ak packet links, AK run/schema authority, whole review workflow orchestration, or generic all-session surveillance.

Runtime surfaces

This package is background/library-first. It does not register a user-facing slash command and does not expose scaffold prompt templates.

Current surfaces:

1. an importable helper for callers that already have ctx.sessionManager
2. a gated background agent_settled handler for explicit review-lane capture

Programmatic helper

Consumers can import the helper:

import { extractLatestAssistantMessageProvenance } from "@tryinget/pi-provenance/provenance";

const provenance = extractLatestAssistantMessageProvenance(ctx.sessionManager);

Returned shape:

{
  "provenance_schema": "pi.assistant_message.provenance.v1",
  "source_owner": "pi-runtime",
  "capture_time": "2026-04-26T07:00:00.000Z",
  "pi_session": {
    "session_id": "...",
    "session_file": "...",
    "message_entry_id": "...",
    "message_parent_id": "...",
    "entry_timestamp": "..."
  },
  "assistant_message": {
    "provider": "...",
    "model": "...",
    "api": "...",
    "response_id": "...",
    "message_timestamp": 1777185319548,
    "stop_reason": "stop",
    "usage": {}
  }
}

The helper does not include raw message content, prompts, provider request payloads, auth headers, tool output, or full session chronology.

Background review-lane capture

The extension listens for agent_settled, but it is inert unless both explicit environment markers are present:

export PI_PROVENANCE_REVIEW_LANE_ID="review-lane-id"
export PI_PROVENANCE_OUTPUT_FILE="/absolute/path/to/provenance.json"

When both are set, the extension resolves the latest persisted assistant-message entry from ctx.sessionManager and atomically writes the minimal provenance block with this context:

{
  "capture_context": {
    "kind": "review_lane",
    "review_lane_id": "review-lane-id"
  }
}

This makes review-runner wiring possible without making provenance capture visible in everyday Pi sessions.

Review-lane provenance rule

For future governed review lanes, use this package as the source-runtime extractor and let the caller write evidence explicitly:

review runner / orchestrator / ASC consumer
-> call pi-provenance after the assistant message is persisted
-> write the minimal block into lane evidence
-> keep historical lanes as not_surfaced unless exact JSONL entries are resolved

Important host lifecycle detail: Pi emits extension message_end before the session manager appends the message entry to JSONL. If a caller needs exact message_entry_id, resolve it from ctx.sessionManager.getEntries() after persistence, for example at agent_settled or by post-turn readback.

Runtime dependencies

This package expects Pi host runtime APIs and declares them as peerDependencies:

• @earendil-works/pi-coding-agent
• @earendil-works/pi-ai

When using UI APIs (ctx.ui), guard interactive-only behavior with ctx.hasUI so pi -p non-interactive runs stay stable.

Package checks

Run from package directory:

npm install
npm run check

Run from monorepo root through the canonical package gate:

bash ./scripts/package-quality-gate.sh ci packages/pi-provenance

The generated package-local scripts/quality-gate.sh is a thin wrapper that searches upward for the canonical monorepo root gate. If you validate the package outside the monorepo tree, set PACKAGE_QUALITY_GATE_SCRIPT to the canonical pi-extensions root gate path.

AK task/work-item operations

This package is a monorepo member, not a git root. Use plain installed ak from the monorepo root or package directory; repo identity still belongs to the monorepo root.

Documentation placement

Use:

• docs/project/ for dated RFCs, runbooks, and evidence/progress notes
• docs/adr/ for adopted architecture decisions

Avoid creating new package-local docs/dev/ trees.

Live package activation

Install the package into Pi from this package directory:

pi install /home/tryinget/ai-society/softwareco/owned/pi-extensions/packages/pi-provenance

Then in Pi:

1. run /reload
2. run a marked review-lane smoke with PI_PROVENANCE_REVIEW_LANE_ID and PI_PROVENANCE_OUTPUT_FILE
3. verify the output file contains only the minimal session/message/provider/model/API provenance block

Release metadata

This package keeps component metadata in package.json under x-pi-template:

• workspacePath
• releaseComponent
• releaseConfigMode

Use these values when wiring monorepo-level release-please component maps.

Docs discovery

npm run docs:list
npm run docs:list:workspace
npm run docs:list:json

Copier lifecycle policy

• Keep .copier-answers.yml committed.
• Do not edit .copier-answers.yml manually.
• Run update/recopy from a clean destination repo (commit or stash pending changes first).
• Use copier update --trust when .copier-answers.yml includes _commit and update is supported.
• In non-interactive shells/CI, append --defaults to update/recopy.
• Use copier recopy --trust when update is unavailable (for example local non-VCS source) or cannot reconcile cleanly.
• After recopy, re-apply local deltas intentionally and run npm run check.