feature-ideation → incubator: add caller stub (@v1-stable) + project_context + Discussions/Ideas

[don-petry]

Part of the fleet-promotion delivery (Epic #781) — the feature-ideation half of "reach incubator".

Re-scoped 2026-07-21. #836/#837 makes feature-ideation a seed-if-absent, body-preserving deployable shim, so the deploy sweep now carries the stub to incubator (and re-pins it without ever clobbering a tuned project_context). That removes the manual stub add this issue originally called for. Two of the original prereqs are already satisfied:

• ✅ Discussions + "Ideas" category exist on incubator.
• ✅ CLAUDE_CODE_OAUTH_TOKEN (and GH_PAT_DON_PETRY) are org secrets with visibility=all → visible to incubator.

What remains is the incubator-specific project_context (the one real per-repo edit), plus the end-to-end smoke test.

Dependency / sequencing

Blocked on #837 (Epic #781) merging and the deploy sweep seeding incubator/.github/workflows/feature-ideation.yml@feature-ideation/v1-stable. Only after the stub exists can its project_context be tuned — and thanks to #836's no-clobber invariant, that tuning is preserved on every subsequent sweep.

Steps (remaining)

1. On the seeded incubator stub, set project_context to describe the incubator repo — its purpose as petry-projects' incubation repository for early-stage product/feature ideas and experiments, so the pipeline proposes concepts appropriate to early-stage incubation (not mature-product features).
2. (Optional) tune the Friday 07:00 UTC cron; (optional) add .github/feature-ideation-sources.md.

Acceptance criteria

• incubator/.github/workflows/feature-ideation.yml present (via the sweep), pinned @feature-ideation/v1-stable, with a real incubator project_context.
• A re-run of the deploy sweep leaves that project_context untouched (no-clobber invariant holds in practice).
• A manual workflow_dispatch run completes and publishes to the incubator "Ideas" discussion category.
• No change to the reusable or canary-rings.json (stub-only).

[don-petry]

Tracked under fleet-promotion Epic #781 (feature-ideation → incubator track; standalone/parallel to the persona-mention DAG).

[don-petry]

Dev-Lead: implementation deferred — automation PR queue is full

No pull request was opened for issue #813. The org-wide
open-automation-PR queue is currently at its signed-off cap (see
standards/pr-limits.json in petry-projects/.github).

This issue stays labeled dev-lead and will be re-attempted automatically once
the queue drains — no action is required.

[don-petry]

Re-scoped to match #836/#837: the stub now arrives via the deploy sweep (seed-if-absent, body-preserving), and Discussions/Ideas + the OAuth token are already in place. Remaining work is just the incubator project_context + smoke test, and it's sequenced after #837 merges + the sweep seeds the stub. Driving #837 → sweep now; this can be picked up once the stub is present (cap-drain in progress).

[don-petry]

Delivered. feature-ideation is live on incubator:

• Stub seeded via the Make initiative-driver / pr-auto-review / feature-ideation standard deployable shims (+ canonical-PAT migration) #836/feat: implement issue #836 — Make initiative-driver / pr-auto-review / feature-ideation standard deployable shims (+ canonical-PAT migration) #837 sweep (PR chore: sync 1 org-standard workflow stub(s) from petry-projects/.github incubator#47), pinned @feature-ideation/v1-stable.
• Real incubator project_context set (early-stage incubation repo framing).
• No-clobber invariant verified in production: a re-run of the deploy sweep reports SKIP … already compliant — the tuned project_context is preserved, never re-seeded.
• End-to-end smoke test passed: a dispatched run published to the incubator Ideas discussion — 💡 "MCP Probe" (incubator#48), on-theme, confirming the context tuning took.
• Discussions/Ideas + CLAUDE_CODE_OAUTH_TOKEN prereqs were already satisfied.

Closes as part of Epic #781 (feature-ideation half of 'reach incubator').