Official agent skill

Diagnosing CI And Merge Bottlenecks

by PostHog in PostHog/posthog

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…

OfficialCustom licenceAuto-check passedDevelopment

Install Diagnosing CI And Merge Bottlenecks

skills CLI
$ npx skills add PostHog/posthog --skill diagnosing-ci-and-merge-bottlenecks -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install PostHog/posthog diagnosing-ci-and-merge-bottlenecks --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/PostHog/posthog.git skills-src && mkdir -p .claude/skills && cp -r skills-src/products/engineering_analytics/skills/diagnosing-ci-and-merge-bottlenecks .claude/skills/diagnosing-ci-and-merge-bottlenecks && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
diagnosing-ci-and-merge-bottlenecks
GitHub stars
40k
Token cost
~3.7k tokens
SKILL.md length
1,671 words
Files
1
Skills in repo
254
Repo updated
First seen
Licence
Custom licence

At a glance

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…

  • Asked whether CI is getting faster
  • SKILL.md covers The tools, Caveats you must carry into…, Choosing a tool and The high-value chain, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Which GitHub Actions workflow is the slow

What it does

Diagnosing CI And Merge Bottlenecks is an agent skill from PostHog/posthog, published by the product's own GitHub organization. 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…

Its SKILL.md is about 3.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Failing and flaky tests, Pull requests and CI/CD. It works with PostHog, GitHub and GitHub Actions. The repository describes itself as: :hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error…

When your agent uses it

  • Asked whether CI is getting faster
  • Which GitHub Actions workflow is the slow
  • Flaky long-pole
  • How long PRs take from open to merge

Example prompts

  • “engineering analytics”
  • “is CI getting slower”
  • “slow workflow”
  • “/diagnosing-ci-and-merge-bottlenecks”

What it can do on your machine

Read from SKILL.md and the folder at commit c012c8d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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.

Context cost

Diagnosing CI And Merge Bottlenecks loads about 3.7k tokens when it runs. Until then it costs about 242 tokens; SKILL.md has 1,671 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~242
When it runs · the whole SKILL.md, loaded when a task matches
~3.7k

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

Auto-check passed

The automated check found no risky patterns in SKILL.md.

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,671 words (~3,679 tokens).

“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…”

— opening of SKILL.md by PostHog, Custom licence
name
diagnosing-ci-and-merge-bottlenecks

Read the full SKILL.md on GitHub

Files

Just SKILL.md in products/engineering_analytics/skills/diagnosing-ci-and-merge-bottlenecks of PostHog/posthog.

Open the folder on GitHubat commit c012c8d

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders. This page covers the copy in PostHog/posthog, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Diagnosing CI And Merge Bottlenecks next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Diagnosing CI And Merge Bottlenecks compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Diagnosing CI And Merge Bottlenecks this skillPostHog/posthog40k—~3.7kAutomated safety check: PassCustom licence
ONNX Runtime CI Managementmicrosoft/onnxruntime22k—~4.1kAutomated safety check: PassMIT
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Ghbubbuild/bub1.7k—~798Automated safety check: PassApache-2.0
Renovate Actions PR Reviewbacknotprop/plannotator9.3k—~640Automated safety check: PassApache-2.0
Code Reviewoaslananka/kicad-mcp-pro122—~3.9kAutomated safety check: PassMIT

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Categories

Questions about Diagnosing CI And Merge Bottlenecks

What does Diagnosing CI And Merge Bottlenecks 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…. Diagnosing CI And Merge Bottlenecks is an agent skill from PostHog/posthog, published by the product's own GitHub organization. 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).

When should I use Diagnosing CI And Merge Bottlenecks?

Diagnosing CI And Merge Bottlenecks fits situations like: asked whether CI is getting faster; which GitHub Actions workflow is the slow; flaky long-pole; how long PRs take from open to merge.

How do I install Diagnosing CI And Merge Bottlenecks in Claude Code?

Run `npx skills add PostHog/posthog --skill diagnosing-ci-and-merge-bottlenecks -a claude-code`. Or copy the skill folder (products/engineering_analytics/skills/diagnosing-ci-and-merge-bottlenecks in PostHog/posthog) into .claude/skills/diagnosing-ci-and-merge-bottlenecks in your project. Claude Code loads it when a task matches its description.

How do I install Diagnosing CI And Merge Bottlenecks in Codex?

Run `npx skills add PostHog/posthog --skill diagnosing-ci-and-merge-bottlenecks -a codex`. Or copy the skill folder (products/engineering_analytics/skills/diagnosing-ci-and-merge-bottlenecks in PostHog/posthog) into .agents/skills/diagnosing-ci-and-merge-bottlenecks in your project. Codex loads it when a task matches its description.

Can I use Diagnosing CI And Merge Bottlenecks in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add PostHog/posthog --skill diagnosing-ci-and-merge-bottlenecks -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/diagnosing-ci-and-merge-bottlenecks, .gemini/skills/diagnosing-ci-and-merge-bottlenecks, .github/skills/diagnosing-ci-and-merge-bottlenecks and .opencode/skills/diagnosing-ci-and-merge-bottlenecks in your project.

What does Diagnosing CI And Merge Bottlenecks need to run?

SKILL.md names no scripts, command-line tools or credentials: Diagnosing CI And Merge Bottlenecks is instructions for the agent only.

Does Diagnosing CI And Merge Bottlenecks access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Diagnosing CI And Merge Bottlenecks safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Diagnosing CI And Merge Bottlenecks use?

Diagnosing CI And Merge Bottlenecks has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Diagnosing CI And Merge Bottlenecks use?

About 3.7k tokens (SKILL.md is roughly 15k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Diagnosing CI And Merge Bottlenecks?

Skills that share tags, products or a category with Diagnosing CI And Merge Bottlenecks: ONNX Runtime CI Management (microsoft/onnxruntime, 22k stars), PR Babysitter (openinterpreter/openinterpreter, 69k stars), Gh (bubbuild/bub, 1.7k stars) and Renovate Actions PR Review (backnotprop/plannotator, 9.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Diagnosing CI And Merge Bottlenecks?

PostHog (a GitHub organization, an official publisher) maintains it in PostHog/posthog, which has 40,209 GitHub stars. The repository holds 254 skills in this directory. The repository was last updated on October 10, 2026.

Source: PostHog/posthog on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.