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Diagnosing CI And Merge Bottlenecks

Category: Engineering  ·  Sub-category: workflow-orchestration  ·  Last updated:
type:debug
Diagnoses CI and pull-request pipeline health for a GitHub repo using the engineering analytics MCP tools — pull-requests (PR list with CI status), workflow-health (per-workflow CI trends), and pr-lifecycle (a single PR's timeline). Use when asked whether CI is getting faster or slower, which GitHub Actions workflow is the slow or flaky long-pole, how long PRs take from open to merge, how an author's merge time compares to the cohort, which open PRs have failing or pending CI, or where a specific pull request is stuck. Triggers on "engineering analytics", "is CI getting slower", "slow workflow", "flaky CI", "time to merge", "cycle time", "PR throughput", "failing checks", "where is PR <n> stuck", "CI long pole", "what's holding up this PR". For a verdict on one specific CI failure (whose fault, which commit) use investigating-ci-failures; to save these numbers as insights use turning-engineering-analytics-into-insights.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Engineering analytics treats a pull request like product analytics treats a user: a PR moves through a pipeline (opened → CI → review → merged → deployed) and the job is to find where it slows down. The surface is named MCP tools — you call them, you don't write SQL. Dogfooded on PostHog/posthog; the same tools serve autonomous agents (e.g. PostHog Desktop) reasoning about their own PRs. Scope is aggregate pipeline health: to take one failing test or red run to a verdict, switch to the investigating-ci-failures skill.

What this skill does

Diagnosing CI And Merge Bottlenecks is a community-contributed Claude Code skill in the workflow-orchestration sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/diagnosing-ci-and-merge-bottlenecks/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked whether CI is getting faster or slower, which GitHub Actions workflow is the slow or flaky long-pole, how long PRs take from open to merge, how an author's merge time compares to the cohort, which open PRs have failing or pending CI, or where a specific pull request is stuck. Triggers on "engineering analytics", "is CI getting slower", "slow workflow", "flaky CI", "time to merge", "cycle time", "PR throughput", "failing checks", "where is PR <n> stuck", "CI long pole", "what's holding up this PR".

Who uses this skill

The Diagnosing CI And Merge Bottlenecks Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 196,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/diagnosing-ci-and-merge-bottlenecks
curl -L https://claudskills.com/skills/diagnosing-ci-and-merge-bottlenecks/SKILL.md \
  -o ~/.claude/skills/diagnosing-ci-and-merge-bottlenecks/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/diagnosing-ci-and-merge-bottlenecks/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/diagnosing-ci-and-merge-bottlenecks/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\diagnosing-ci-and-merge-bottlenecks\SKILL.md on Windows. See the full install guide for step-by-step instructions.

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Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

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See pricing → Download desktop app

Frequently asked questions

How do I install the Diagnosing CI And Merge Bottlenecks Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/diagnosing-ci-and-merge-bottlenecks/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Diagnosing CI And Merge Bottlenecks skill do?
Diagnoses CI and pull-request pipeline health for a GitHub repo using the engineering analytics MCP tools — pull-requests (PR list with CI status), workflow-health (per-workflow CI trends), and pr-lifecycle (a single PR's timeline). Use when asked whether CI is getting faster or slower, which GitHub Actions workflow is the slow or flaky long-pole, how long PRs take from open to merge, how an author's merge time compares to the cohort, which open PRs have failing or pending CI, or where a specific pull request is stuck. Triggers on "engineering analytics", "is CI getting slower", "slow workflow", "flaky CI", "time to merge", "cycle time", "PR throughput", "failing checks", "where is PR <n> stuck", "CI long pole", "what's holding up this PR". For a verdict on one specific CI failure (whose fault, which commit) use investigating-ci-failures; to save these numbers as insights use turning-engineering-analytics-into-insights.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Diagnosing CI And Merge Bottlenecks skill?
Use Diagnosing CI And Merge Bottlenecks when your Claude Code task falls under the Engineering category — specifically in the workflow orchestration area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Diagnosing CI And Merge Bottlenecks" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Diagnosing CI And Merge Bottlenecks skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Diagnosing CI And Merge Bottlenecks is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
PostHog. (2026). Diagnosing CI And Merge Bottlenecks [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/diagnosing-ci-and-merge-bottlenecks/
BibTeX
@misc{diagnosing-ci-and-merge-bottlenecks-2026,
  author    = {PostHog},
  title     = {Diagnosing CI And Merge Bottlenecks [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/diagnosing-ci-and-merge-bottlenecks/}
}

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Grade A · scanned 2026-09-28 — free static scan against the OWASP Agentic Skills Top 10.

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