[Molecule-Platform-Evolvement-Manager]
## What was broken
Same bug class as the secret-scan.yml fix in #2120 — block-internal-paths
hit `fatal: bad object <sha>` exit 128 on the staging push at
2026-04-27 06:50:33Z.
Two cases:
1. **`merge_group` events**: BASE/HEAD came from
`github.event.before` / `.after` which are push-event-only
properties. On merge_group both came back empty, the script fell
through to "scan entire tree" mode which is correct but
inefficient. Worse, when this workflow is required for the merge
queue (line 21-22), an empty-BASE entire-tree scan would run on
every queue check.
2. **`push` events with shallow clones**: `fetch-depth: 2` doesn't
always cover BASE across true merge commits. When BASE is in the
payload but absent from the local object DB, `git diff` errors out
with `fatal: bad object <sha>` and the job exits 128. This is what
broke today's staging push.
## Fix
Same shape as the secret-scan.yml fix (#2120):
- Add a dedicated `git fetch` step for `merge_group.base_sha`.
- Move event-specific SHAs into a step `env:` block; script uses a
`case` over `${{ github.event_name }}` covering pull_request /
merge_group / push (rather than `if pull_request / else push`
which left merge_group on the empty-BASE branch).
- On-demand fetch + `git cat-file -e` guard for push BASE so a SHA
that's payload-present-but-DB-absent triggers the fetch, and a
fetch failure falls through cleanly to "scan entire tree" instead
of exiting 128.
## Test plan
- [x] YAML structure preserved (no schema changes)
- [x] Bash logic mirrors the secret-scan recovery path tested in #2120
- [ ] CI green on this PR's pull_request scan + push to staging post-merge
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The checkout uses fetch-depth=2, which works for push events (only need
HEAD^1). But for pull_request events the diff base is
github.event.pull_request.base.sha — the tip of the target branch —
which can be many commits behind and therefore absent from the shallow
clone, producing:
fatal: bad object <sha> (exit 128)
Fix: add an explicit `git fetch --depth=1 origin <base-sha>` step that
runs only on pull_request events, keeping push events fast.
Unblocks: PR #1996 (and any other PR targeting a fast-moving staging).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Re-do of the fix that was originally bundled into PR #1995 but never
landed — the second commit on that branch got rejected by GH006
(branch locked by merge queue) after the first commit was already
queued. Only the file-removal commit made it to staging.
Without this trigger, adding "Block forbidden paths" to
required_status_checks deadlocks the queue: every PR sits in
AWAITING_CHECKS forever waiting on a check that can't fire on
gh-readonly-queue/* refs.
Sequence to land safely:
1. (already done) Removed "Block forbidden paths" from required_status_checks
2. (this PR) Add merge_group trigger
3. (after merge) Re-add "Block forbidden paths" to required_status_checks
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This monorepo is public. Internal content (positioning, competitive
briefs, sales playbooks, PMM/press drip, draft campaigns) belongs in
Molecule-AI/internal — never here.
## What this PR removes
/research/ (3 competitive briefs)
/marketing/ (45 files: assets, audio, community, copy,
demos, devrel, drip, pmm, press, sales)
/docs/marketing/ (31 draft campaign / blog / brief files)
comment-1172.json + comment-1173.json
test-pmm-temp.txt
tick-reflections-temp.md
83 files removed, 7,141 lines deleted from public history (going forward —
historical commits remain visible in this repo's git log).
## Companion: internal repo absorption
Molecule-AI/internal PR `chore/migrate-monorepo-internal-content-2026-04-23`
absorbs all 79 files into `from-monorepo-2026-04-23/` for curator triage
into the existing internal/marketing/ tree. Bulk-dump avoids file-collision
on overlapping subdirs (audio, devrel, pmm).
## Three-layer enforcement so this can't recur
1. .gitignore — blocks `git add` of /research, /marketing, /docs/marketing,
/comment-*.json, *-temp.{md,txt}, /test-pmm-*, /tick-reflections-*
2. .github/workflows/block-internal-paths.yml — CI hard gate. Fails any PR
that adds a forbidden path. Cannot be silently bypassed.
3. docs/internal-content-policy.md — canonical decision tree for agents
and humans. Linked from the CI failure message.
A separate PR on molecule-ai-org-template-molecule-dev updates SHARED_RULES
to teach every agent role to write internal content directly to
Molecule-AI/internal via gh repo clone + commit + PR (the prevention-at-
source layer; this PR is the mechanical backstop).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
