Check PR

What it does

When your agent uses it

• The user wants to check a PR/MR/CL
• Address review feedback
• Prepare a change for submission

Example prompts

• “Use the check-pr skill to check a GitHub, GitLab, or Perforce (p4) pull request (or merge request, or shelved changelist) for unresolved review…”
• “/check-pr”

Requirements

• Compatibility (from SKILL.md): Requires git and gh (GitHub CLI), glab (GitLab CLI), or p4 (Perforce CLI) installed and authenticated.
• Pre-approved tools (allowed-tools): Bash(gh:*), Bash(glab:*), Bash(git:*), Bash(p4:*)

Workflow steps

10 steps, taken from the step headings in SKILL.md.

1. 1Detect platform
2. 2Identify the PR/MR/CL
3. 3Fetch PR/MR/CL details
4. 4Wait for pending checks
5. 5Analyze the PR/MR
6. 6Categorize issues
7. 7Report findings
8. 8Fix issues (if requested)
9. 9Resolve review threads
10. 10Multiple PRs/MRs/CLs

What it can do on your machine

Read from SKILL.md and the folder at commit d83b611. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Bash(gh:*)
  • Bash(glab:*)
  • Bash(git:*)
  • Bash(p4:*)

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • gh
  • glab
  • git
  • jq

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use gh, glab and git, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

• Compatibility

  Requires git and gh (GitHub CLI), glab (GitLab CLI), or p4 (Perforce CLI) installed and authenticated.

  From compatibility in the SKILL.md frontmatter.

Context cost

Check PR loads about 2.3k tokens when it runs, and up to ~3.5k if it reads all its reference files. Until then it costs about 107 tokens; SKILL.md has 833 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~107

When it runs · the whole SKILL.md, loaded when a task matches

~2.3k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~3.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from onyx-dot-app/onyx at commit d83b611, republished under its MIT licence (© onyx-dot-app). 833 words, ~2,321 tokens.

name

check-pr

description

Checks a GitHub, GitLab, or Perforce (p4) pull request (or merge request, or shelved changelist) for unresolved review comments, failing status checks, and incomplete PR descriptions. Waits for pending checks to complete, categorizes issues as actionable or informational, and optionally fixes and resolves them. Use when the user wants to check a PR/MR/CL, address review feedback, or prepare a change for submission.

allowed-tools

Bash(gh:*), Bash(glab:*), Bash(git:*), Bash(p4:*)

compatibility

Requires git and gh (GitHub CLI), glab (GitLab CLI), or p4 (Perforce CLI) installed and authenticated.

license

MIT

metadata.author

greptileai

metadata.version

1.3

# Check for Perforce environment
if p4 info >/dev/null 2>&1; then
  VCS="perforce"
else
  # Fall back to git remote detection
  REMOTE_URL=$(git remote get-url origin)
  if echo "$REMOTE_URL" | grep -qi "gitlab"; then
    VCS="gitlab"
  else
    VCS="github"
  fi
fi

gh pr view --json number -q .number

glab mr view --output json | jq '.iid'

# List pending changelists for the current user/client
p4 changes -s pending -u $P4USER -c $P4CLIENT

gh pr view <PR_NUMBER> --json title,body,state,reviews,comments,headRefName,statusCheckRollup
gh api repos/{owner}/{repo}/pulls/<PR_NUMBER>/comments
gh api --paginate "repos/{owner}/{repo}/issues/<PR_NUMBER>/comments?per_page=100"

glab mr view <MR_IID> --output json
# Fetch discussions (inline diff comments are type "DiffNote"; general comments have null type)
glab api "projects/:fullpath/merge_requests/<MR_IID>/discussions"

# Get changelist description, files, and status
p4 describe -s <CL_NUMBER>

# Get shelved files (for in-review CLs)
p4 describe -S <CL_NUMBER>

# Get the diff of the shelved changelist
p4 diff2 //...@=<CL_NUMBER> //...@=<CL_NUMBER>

# List review comments (if using p4 review workflow)
p4 review -c <CL_NUMBER>

glab api "projects/:fullpath/merge_requests/<MR_IID>/pipelines"

git add <files>
git commit -m "address review feedback"
git push

p4 edit <file>
# make changes
p4 shelve -f -c <CL_NUMBER>

# Mark files as reviewed after addressing feedback
p4 review -c <CL_NUMBER>

gh api graphql -f query='
query($cursor: String) {
  repository(owner: "OWNER", name: "REPO") {
    pullRequest(number: PR_NUMBER) {
      reviewThreads(first: 100, after: $cursor) {
        pageInfo { hasNextPage endCursor }
        nodes {
          id
          isResolved
          comments(first: 1) {
            nodes { body path }
          }
        }
      }
    }
  }
}'

gh api graphql -f query='
mutation {
  resolveReviewThread(input: {threadId: "THREAD_ID"}) {
    thread { isResolved }
  }
}'

glab api "projects/:fullpath/merge_requests/<MR_IID>/discussions?per_page=100"

glab api --method PUT \
  "projects/:fullpath/merge_requests/<MR_IID>/discussions/<DISCUSSION_ID>" \
  --field resolved=true

p4 changes -s pending -u $P4USER -c $P4CLIENT -l

© onyx-dot-app, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in .agents/skills/greptile/check-pr of onyx-dot-app/onyx.

• SKILL.md
• references/gitlab-api.md
• references/graphql-queries.md

Open the folder on GitHubat commit d83b611

Used in 3 other repositories

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in onyx-dot-app/onyx, which our catalogue first saw on October 7, 2026.

• onyx-dot-app/onyx-foss.agents/skills/greptile/check-pr
• greptileai/skillscheck-pr
• het2333/OrgMesh.cursor/skills/greptile/check-pr