commit git:20261012.327372aB

Immutable. This exact content never changes and is served at /api/v1/blob/5aea4ed7cfd4d3fa.

---
argument-hint:
  "[--all] [--staged] [--natural] [--conventional] [--push] [--close <issue_numbers>] [--finding <finding_ids>]
  [--squash [--base <branch>]]"
compatibility:
  Requires Git and ai-commit with automatic ai-coord stale-dirt baseline discovery on PATH. Squash mode also requires
  uv.
effort: medium
name: commit
description:
  "Commit staged or intended changes: compose a Conventional Prefix or Natural Language message, then use ai-commit —
  with --all, --staged, --close, --finding, or --push. Also squash a branch into one commit with --squash."
---

# Git Commit

Compose the semantic commit message from immutable evidence. Let `ai-commit` own deterministic preparation, commit,
index reconciliation, and push mechanics.

Run every command from the target repository cwd. Do not surround `ai-commit` with extra `git status`, `git log`, or
`git diff` calls: preparation provides the complete evidence for this workflow. Use `--porcelain` only in deterministic
automation that explicitly parses its stable TSV records. The normal skill flow consumes the human-readable sections.

## 1. Parse Arguments

Arguments: `$ARGUMENTS`

- `ai-commit` selects the message format from repository config. Pass `--natural` or `--conventional` only as an
  explicit one-off override, never to reproduce repository policy.
- `--all`: capture all worktree and index changes. This intentionally risks including another agent's work.
- `--staged`: capture exactly the current index. Do not add session paths. It conflicts with `--all`.
- `--natural`: force Natural Language Format for this commit.
- `--conventional`: force Conventional Prefix Format for this commit.
- `--push`: request a push after commit. Otherwise push only when standing instructions authorize it.
- `--rebase`: with `--push`, let `ai-commit` rebase a behind branch onto its fetched upstream before the push. Pass it
  with every authorized push unless the user excludes it.
- `--close <issue_numbers>`: pass one `ai-commit commit --close <N>` per positive decimal issue number. Accept comma- or
  space-separated input. `ai-commit` writes the `Closes #N` lines.
- `--finding <finding_ids>`: pass one `ai-commit commit --finding <id>` per ledger finding this commit fixes. Accept
  comma- or space-separated input. Also infer a finding from context when this session's commit fixes a specific ledger
  finding. `ai-commit` writes the `Finding-ID: <id>` trailer and resolves the finding after the commit. Never include or
  resolve findings the commit does not actually fix.
- `--squash`: replace every branch commit after the merge base with one commit that carries the net branch diff. The
  helper finds the merge base with the resolved default branch. Squash mode requires a clean tree and index and an
  attached non-default branch. It conflicts with `--all`, `--staged`, and `--push`.
- `--base <branch>`: override default-branch detection. Use it only with `--squash`.
- In Conventional Prefix Format, a positional type keyword overrides the inferred type. In Natural Language Format, a
  positional verb or category keyword overrides the inferred verb. Quoted positional text overrides the inferred
  description or subject.

If the requested operation is only to push a clean branch that is already ahead, skip preparation. Check the push
destination below, then run `ai-commit push --rebase`.

### Push Destination

`ai-commit` pushes to the configured upstream: `branch.<name>.remote` and `branch.<name>.merge`. The remote can be a
named remote or a URL. If the upstream branch has a different name, `branch.<name>.pushRemote` must equal
`branch.<name>.remote`. `gh pr checkout` writes this configuration for a PR that lets maintainers push.

When you work on an existing PR, get its head repository and branch from `gh pr view` before you commit or push. A push
to another branch does not update the PR. If the upstream does not match the PR head, correct the branch configuration:

```bash
git config branch.<branch>.remote '<head-remote-or-url>'
git config branch.<branch>.merge 'refs/heads/<head-branch>'
git config branch.<branch>.pushRemote '<head-remote-or-url>'
```

Then push with `ai-commit`. Do not push manually. Do not force-push. If `ai-commit` refuses the destination, report its
error. Before you report completion, read the PR again and verify that its head SHA matches the pushed commit.

## Squash Mode

Enter squash mode only when the user explicitly requests a squash. Never infer it from branch state, a merge request, or
standing instructions. When `--squash` is present, follow [references/squash.md](references/squash.md) for the plan and
reset steps. Then continue with steps 2 to 5 in `--staged` mode. Never pass `--push` in squash mode, even when standing
instructions authorize a push. The squash reference adds the co-author trailers, the rollback on failure, and the squash
report.

## 2. Prepare Once

Run one preparation command:

```bash
ai-commit prepare [--all | --staged] [--natural | --conventional] --diff full \
  [--exclude-baseline '<path>=<oid>']... [-- <session-modified-paths>...]
```

- Read the full preparation output. Never pipe it through `tail`, `head`, `awk`, `grep`, or similar. It carries both the
  printed transaction ID and the diff step 3 must analyze, and a truncating pipe discards the evidence along with the
  ID.
- Use `--diff summary` instead only when the full diff is too large to read in one pass (for example, a repository-wide
  migration across hundreds of files) and this session already reviewed the content. In that case, compose the message
  from the name-status, shortstat, and that review.
- Before default-mode preparation, run the repository's formatter on this session's edited paths only, so a formatting
  pre-commit hook cannot modify the content after it is pinned.
- Build the default-mode path list from individual repository-relative files with changes attributable to this session.
  Expand directory paths to those file paths, including new and deleted files. Never build the list by parsing
  `git status` or `git status --porcelain` output, which can include another agent's untracked or modified files.
  Default mode requires every path edited in this session. For a rename, include both old and new file paths, including
  case-only file or directory renames.
- Before default-mode preparation, run `ai-coord touched` when available and reconcile its output against the session
  path list. For that cross-check, add missed session-edited paths. Ignore paths this session did not semantically
  change. Touched paths are best-effort evidence, not authority. When the command is unavailable or the session is
  unrecognized, skip this cross-check silently.
- `--all` accepts no explicit paths and captures all tracked, untracked, modified, deleted, and staged changes.
- `--staged` accepts neither explicit paths nor baseline exclusions and captures the shared index exactly.
- `ai-commit prepare` automatically applies this session's ai-coord stale-dirt baselines. Auto-applied exclusions appear
  in the preparation evidence and must be disclosed unchanged. Explicit `--exclude-baseline` remains available for
  overrides, and `--no-auto-baseline` disables discovery for deterministic automation. Never revert unrelated changes.

  If coordination re-entry records this session's completed edits as a baseline, compare its blob IDs with retained
  session or preparation evidence. Use `--no-auto-baseline` only when every selected file's entire delta is attributable
  to the authorized task. Preserve exclusions for mixed ownership or uncertain attribution.

When preparation lists `unclaimed paths`, this session's active ai-coord claim does not cover them. Before committing,
decide per path: if the change is this session's authorized work, acquire the missing scope with `ai-coord start`. If it
is another agent's work, discard the transaction and prepare again without that path. Never commit a path you cannot
attribute.

Preparation pins the exact tree and delta under the printed transaction ID without changing the shared index. Keep that
ID. The later commit reuses the transaction instead of recomputing intended content from the mutable worktree or shared
index. It applies that immutable delta to the locked current branch and fails safely if intervening branch movement
conflicts. If preparation fails before issuing a transaction ID, correct the evidenced argument, attribution, or input
problem and retry preparation within the authorized scope.

## 3. Analyze and Compose

Analyze the single prepared full diff. Do not replace a valid preparation merely to get different evidence. Oversized
per-file sections arrive cut with a `DIFF_TRUNCATED` disclosure. Their name-status and shortstat evidence still governs
the message.

- Use the printed message format and message-format rules. `ai-commit` is the source of those rules. Do not load a
  separate Conventional or Natural reference.
- Apply positional overrides, detect breaking changes, infer scope or context from the code, and include a body only
  when it adds material rationale.
- Collect the issue numbers from `--close` and from transcript issue references that this commit actually resolves.
  Collect the finding IDs from `--finding` and from context. Pass them as step 4 flags. Do not write `Closes`,
  `Finding-ID`, or `Agent-Session` lines into a `-m` value. `ai-commit` appends the `Closes` paragraph and the trailer
  block, including the validated preparation trailer. Do not synthesize or repair a missing trailer.

Compose one subject paragraph and an optional body paragraph. Pass a trailer paragraph yourself only for trailers
`ai-commit` does not generate, such as `Co-authored-by:` in squash mode. `ai-commit` merges its trailers into that
paragraph.

`ai-commit` receives every `-m` value verbatim and rejects a literal `\\n`. Write real line breaks inside the quoted
argument, as in the step 4 example.

## 4. Commit the Transaction

Run:

```bash
ai-commit commit <transaction-id> -m '<subject>' [-m '<body>'] [--close <N>]... [--finding <id>]... [--push --rebase]
```

For example, a two-item body is one `-m` argument containing a physical newline:

```bash
ai-commit commit <transaction-id> -m '<subject>' -m '- first material change
- second material change' --close 42 --finding 873d2a01bb9722f8 [--push --rebase]
```

Append `--push --rebase` when a push is authorized and the Push Destination check passes. `ai-commit` then rebases a
behind branch onto its fetched upstream only when no Git operation is in progress and the working tree and index are
clean. It aborts a rebase that stops. The same command handles default, `--all`, and `--staged` transactions. Never
stage or commit them with direct Git commands.

Transactions are idempotent. After an interruption, lock race, or retryable exit, retry the same transaction ID and
message arguments. For those retryable failures, do not prepare a replacement from newer mutable state. A replay
recovers or returns the retained receipt without creating a duplicate commit. Never delete an index lock.

For a deterministic content failure proven to precede commit creation, correct the authorized work and supersede the
uncommitted preparation using the recovery reference. This includes `snapshot-check hook modified prepared content`. An
immutable retry cannot repair content pinned in a failed snapshot. Existing task authority covers this recovery.

Read [references/failure-recovery.md](references/failure-recovery.md) before superseding a failed preparation or adding
`--no-verify` or `--no-gpg-sign`. Bypass flags are explicit per-attempt recovery options, not first-attempt defaults.

`--finding` resolves each finding with `ai-coord finding resolve --as fixed` after the commit and any push, so no
separate resolve command follows a `FINDING_RESOLVED` line. After `FINDING_UNRESOLVED <id>` with exit `3`, the commit
and push stand. Replay the same command once. If it fails again, report the stderr reason and run the
`ai-coord finding resolve` command it names.

## 5. Completion and Receipt

Keep the receipt compact and forward its outcome lines without decoration:

- `COMMITTED <transaction-id> <commit-oid>` proves commit creation or idempotent recovery. Without push authorization,
  it is completion.
- `HOOK_ADDED <path>` identifies content introduced by a hook outside the prepared path set. Disclose every such line.
- `FINDING_RESOLVED <id>` proves the ledger finding is resolved with the commit OID. `FINDING_UNRESOLVED <id>` means the
  commit stands but the ledger still shows the finding open. Follow the step 4 replay rule.
- `REBASED <branch> <count>` discloses that `ai-commit` rebased the branch onto `<count>` upstream commits before the
  push. In the commit workflow, an `INTEGRATED` line follows it.
- `PUSHED <branch>` or `PUSHED_NEW <branch>` proves propagation and completes push-authorized or push-only work.
- `PUSHED <transaction-id> <commit-oid>` is the retained proof returned when an already-pushed transaction is replayed.
- `INTEGRATED <transaction-id> <head-oid>` discloses that the branch no longer contains the transaction's original
  commit, but HEAD holds its content, for example after a rebase or an identical upstream commit. The `PUSHED` line that
  follows still completes the work. Cite the head OID as the pushed evidence, not the `COMMITTED` OID.
- `SUPERSEDED <transaction-id> <commit-oid>` is safe noncompletion: the branch contains neither the commit nor its
  content, and nothing was pushed. Inspect the branch. If the change is still needed, discard the transaction and
  prepare it again.
- `BEHIND <branch> <count>` is safe noncompletion, never completion: `ai-commit` fetched and refused to integrate or
  push. A preceding `COMMITTED` still proves the local commit.

  Without `--rebase`, replay the same transaction command with `--push --rebase` (or run `ai-commit push --rebase` for
  push-only work). With `--rebase`, the stderr line names why the upstream was not integrated. When another Git
  operation is in progress or the working tree or index is not clean, stop and report that branch reconciliation is
  required. When the rebase stopped and was aborted, report the conflicting paths and ask the user before resolving
  them. Never autostash, and never rebase by hand.

Do not report unrelated tree state, ahead/behind counts not emitted by the command, staging narration, or successful
hook activity. Add only a required one-line bypass disclosure from the recovery reference.