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Shepherding Pull Requests Skill (flutter/flutter) | DecimalAI

code reviewby flutter

Shepherding Pull Requests Skill (flutter/flutter)

flutter/shepherd-prs

Source flutter/flutter ↗License BSD-3-Clause

Automate shepherding, checking status, updating branches, and landing open PRs or approved third-party contributor PRs in the flutter/flutter repository using the gh CLI. When to use: - When you need to check the status of open PRs or shepherded third-party PRs. - When you need to update stale branches or apply the 'autosubmit' label to land approved PRs. When not to use: -

SkillScore68Maintained

Automatic

Coding pack

Last verified 9/26/2026

What it changes

Passed 10 of 15 test cases with the skill, and 9 of 15 without it.

Without skill59%

With skill68%

Checks it passed that the model alone missed

Recommends updating the branch via gh pr update-branch.
Instructs notifying the PR author to resolve the conflicts.
Instructs requesting a second reviewer rather than applying autosubmit.

and 1 more in the full report

3 fixed12 passed either way6 still failing1 broke

Pass-rate lift: +9 pp
Tokens: +57%
Agent turns: 0%
Response time: -42%

Model gemini-3.6-flashMeasured 9/26/2026v115 of 22 cases passed with skill · 15 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/flutter-shepherd-prs/SKILL.md https://app.decimal.ai/s/flutter-shepherd-prs/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add flutter-shepherd-prs, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/flutter-shepherd-prs/ and pins it in .decimal/skills.lock

decimalai skills add flutter-shepherd-prs

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/flutter-shepherd-prs/SKILL.md https://app.decimal.ai/s/flutter-shepherd-prs/SKILL.md

Raw file: /s/flutter-shepherd-prs/SKILL.md ↗ · machine-readable summary at /s/flutter-shepherd-prs.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 3

Prompt

I am evaluating PR #149000 in flutter/flutter for landing. The PR was last updated 10 days ago and its base commit is over a week old. All CI checks were passing previously. Should I add the autosubmit label immediately?

What was checked, without and with the skill
Checked	Without skill	With skill
Advises against adding autosubmit before updating the branch.	Passed	Passed
Recommends updating the branch via gh pr update-branch.	Missed	Passed

case-07 · gemini-3.6-flash · 9/26/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md92 linessingle file

Shepherding Pull Requests Skill (`flutter/flutter`)

This skill defines the canonical runbook for shepherding pull requests in the flutter/flutter repository using native GitHub CLI (gh) commands.

1. Checking PR Status

When the user asks for the status of open or approved PRs:

List Your Own Open PRs:

gh pr list --repo flutter/flutter --author <username> --state open --json number,title,url,mergeable,reviewDecision

List Shepherded / Reviewed Third-Party PRs:

gh pr list --repo flutter/flutter --search "reviewed-by:<username> -author:<username> is:open" --json number,title,url,mergeable,reviewDecision

Inspect Detailed PR Checks:

gh pr checks <number> --repo flutter/flutter

Inspect Reviews, Labels, and Comments:

gh pr view <number> --repo flutter/flutter --json labels,reviewDecision,reviews,comments

2. Pre-Autosubmit Verification Rules

Before applying or re-applying the autosubmit label (gh pr edit <number> --repo flutter/flutter --add-label autosubmit), always perform the following pre-flight verification checks to ensure the autosubmit bot will not reject or strip the label:

Check Previous autosubmit Removal History in Comments:
- Always check if the autosubmit label was previously removed by the auto-submit bot by checking PR comments:
```
gh pr view <number> --repo flutter/flutter --json comments
```
- Look for messages from auto-submit such as "autosubmit label was removed...".
- If the label was previously removed, identify the exact reason stated by the bot (e.g., failing CI checks, insufficient approvals, merge conflicts, or stale branch) and confirm that the underlying issue has been resolved before re-applying autosubmit.
Verify Freshness of Base Commit (>7 Days Old):
- Check whether the PR's base commit is stale (>7 days old).
- If the base commit is more than 7 days old, always instruct running or execute a branch update before attempting to add autosubmit:

Track record

Benchmark

10 / 15

test cases passed, vs 9 / 15 without

Adoption

Users: 1
Times used: 12

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 8/31/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

flutter / flutter

.agents/skills/shepherd-prs/SKILL.md

View on GitHub ↗

License BSD-3-ClauseImported 8/31/2026Version v1

More skills from the same source and nearby in the registry, with their headline benchmark lift.