What is gh-cli-pr-stats?

A guide to calculating pull request statistics from GitHub CLI JSON output. It explains how to measure merge time, count pull requests by state, and find the most active contributors.

Use it to calculate average time to merge, totals for open or closed work, and contributor rankings.

It removes repetitive manual calculations from pull request reports.

gh-cli-pr-stats — Skill for Claude Code and Codex by cxcscmu

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add cxcscmu/SkillLearnBench --skill gh-cli-pr-stats

Clone the repo

git clone --depth 1 https://github.com/cxcscmu/SkillLearnBench

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/cxcscmu/skilllearnbench/gh-cli-pr-stats.svg)](https://agentmods.dev/skills/cxcscmu/skilllearnbench/gh-cli-pr-stats)

Your own site

<a href="https://agentmods.dev/skills/cxcscmu/skilllearnbench/gh-cli-pr-stats"><img src="https://agentmods.dev/badge/skills/cxcscmu/skilllearnbench/gh-cli-pr-stats.svg" alt="Measured on agentmods" height="20"></a>

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 430 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00026	$0.00430
Opus 5	$0.00013	$0.00215
Sonnet 5	$0.00005	$0.00086
Haiku 4.5	$0.00003	$0.00043

Measured 3d ago against content hash 5e292fabea3b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

gh-cli-pr-stats scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/b1-one-shot-claude-opus-4-6/github-repo-analytics/gh-cli-pr-stats/SKILL.md · 59 lines

What it actually says

PR Statistics from gh CLI Output

Fetching PR Data with Timestamps

gh pr list --repo owner/repo --state all \
  --search "created:2024-12-01..2024-12-31" \
  --limit 500 \
  --json number,state,author,createdAt,mergedAt

The author field returns an object: {"login": "username"}. The state field returns: OPEN, CLOSED, or MERGED.

Computing Average Merge Time with jq

# Filter merged PRs and compute average days to merge
echo "$pr_json" | jq '
  [.[] | select(.state == "MERGED") |
    { created: (.createdAt | fromdateiso8601),
      merged: (.mergedAt | fromdateiso8601) } |
    (.merged - .created) / 86400
  ] | add / length
'

fromdateiso8601 converts ISO 8601 strings to Unix epoch seconds.
Divide difference by 86400 to get days.
add / length computes the mean.

Finding Top Contributor

echo "$pr_json" | jq '
  group_by(.author.login) |
  map({login: .[0].author.login, count: length}) |
  sort_by(-.count) |
  .[0]
'

Counting by State

echo "$pr_json" | jq '{
  total: length,
  merged: [.[] | select(.state == "MERGED")] | length,
  closed: [.[] | select(.state == "CLOSED")] | length
}'

Note: In gh CLI output, CLOSED and MERGED are distinct states. A merged PR has state MERGED, not CLOSED.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

3d ago First seen · 59 lines · 26 tokens per session scan A 5e292fabea3b

Subscribe to this mod's changes

gh-cli-pr-stats is a skill published in the GitHub repository cxcscmu/SkillLearnBench (83 stars, last pushed 1mo ago), licensed MIT. It adds 26 tokens to every session and 430 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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