todo2code

Ticket 051: Wire github-event-log acquisition into CI

• ID: ticket-051
• Owner: unresolved:human
• Status: PLAN
• Workflow state: WAIT_FOR_APPROVAL
• Created: 2026-08-06

Goal and scope

Ticket-048 publishes scripts/github-event-log.mjs as a callable adapter with required flags and no environment reads. Wiring it into .github/workflows/** was an explicit non-goal of 048 so publication could stay small.

This ticket adds a minimal, fail-closed CI (or reusable workflow) step that:

1. passes --event-path, --repository, and other flags explicitly from the Actions context (shell expansion of $GITHUB_* into argv is fine; process.env inside the script is not),
2. writes an artifact logs.dsl.txt for supported events only,
3. never soft-fails into guessing provenance or ambient state,
4. stays outside the trust root that approves merges (this step produces SYSTEM_FACT evidence; it does not approve PRs).

Prefer landing after ticket-048 merges so the script already exists on main.

Acceptance criteria

• AC-01: Human approves event set (subset of push / pull_request / pull_request_review / completed workflow_run) and artifact retention.
• AC-02: Workflow invokes the script with only argv flags; a unit or workflow-validation case still proves the script reads no process.env.
• AC-03: Unsupported events fail closed without failing unrelated jobs (documented skip vs hard-fail policy).
• AC-04: Governance, verify, and docker gates pass; no .env.example change.

Participants

• Human participant: unresolved; no user-* file was created by this script.
• Agent participant: ai-grok.md

Non-goals

• No Validator self-trigger.
• No new event vocabulary.
• No restoration of ambient process.env fallbacks.

Related

• ticket-048 (adapter publication)
• ticket-049 §3 phase C2
• docs/EVENT_LOG_DSL.md acquisition section

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