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Be1zebub/PerfGraph
CDP-powered perf CLI: goes beyond Lighthouse scores, builds causal degradation graphs. Tells you why it's slow, not just that it is.
History
Review weekly changes to SKILL.md before updating. Dates mark the weeks in which we observed each version; checks apply to the recorded commits.
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skills/perfgraph/SKILL.md
Week of Oct 26, 2026 · Line counts unavailable
Before Not checked yet → After Network or broad shell
First observation → 21d386d55db7
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git clone --filter=blob:none --no-checkout https://github.com/Be1zebub/PerfGraph.git .hotskills/be1zebub-perfgraph && git -C .hotskills/be1zebub-perfgraph checkout --detach 21d386d55db73ebfbc4f343518732937fb1c7584
# Copy each selected skill directory from .hotskills/be1zebub-perfgraph into .agents/skills/<skill-name>/13GitHub stars
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Heat
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Individual skills in this repository
- perfgraph
skills/perfgraph
How it works
perfgraph
When your agent uses it
Analyze web performance URLs with the PerfGraph CLI and interpret its deterministic reports, causal chains, and prioritized remediation data. Use when the request names perfgraph, or asks to measure or diagnose loading speed, Core Web Vitals, Lighthouse performance, bottlenecks, or web performance regressions.
What it loads into context
Frontmatter
89 tokensAlways available to the agent
SKILL.md
2,080 tokensWhen the skill is activated
Reference documents
2,584 tokensLoaded on request
Token counts are estimates. Scripts run separately; they are not counted as reference context.
The playbook
- Run an analysis
- Read results progressively
- Interpret the result
- Additional report semantics
Files
SKILL.mdcore9,289 bytesSKILL.mdcore9,289 bytesSKILL.mdcore9,289 bytesSKILL.mdcore9,289 bytesSKILL.mdcore9,289 bytesSKILL.mdcore9,289 bytesSKILL.mdcore9,289 bytesSKILL.mdcore9,289 bytesreferences/interpretation.mddoc11,155 bytes
Read SKILL.md
# PerfGraph CLI
Skill version 0.2.0 — matches the `perfgraph` package. A copy of this skill
that is older than the installed package gives outdated guidance; check it
with `perfgraph --version`.
Use this skill when the task requires a fresh synthetic performance analysis or
interpretation of an existing PerfGraph run. The CLI is the execution layer;
the skill explains how to invoke it and how to read its artifacts.
## Run an analysis
Prefer the installed `perfgraph` command:
Skills included
- perfgraph
Repository facts
- License
- MIT
- Created
- Jul 24, 2026
- Last pushed
- Oct 21, 2026
- Forks
- 0
- Open issues
- 0
- Project activity
- Active
Before you install
Network or broad shellAutomated signals, not a guarantee
Checked Nov 6, 2026
Not fully analyzed: some files were too long, unreadable or missing. This never lowers the level.
Show 7 notes
skills/perfgraph/SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedskills/perfgraph/SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedskills/perfgraph/SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedskills/perfgraph/SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedskills/perfgraph/SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedskills/perfgraph/SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedskills/perfgraph/SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzed
- No broad tool permissions
- No dangerous shell commands
- 4 network referencesin 2 files: perfgraph/SKILL.md:163 perfgraph/references/interpretation.md:98
- No hidden or obfuscated text
- No instruction overrides
- No executable scripts
- No access to secrets
- No requests to vote in Hot
Show all 4 signals by file
skills/perfgraph/SKILL.md
- Network accessline 163
before blaming the server: a document that is fetched from the origin on every visit because of `cf-cache-status: DYNAMIC` and `max-age=0` is a caching problem, not a slow backend. Do not fetch the page again with curl to learn - Network accessline 164
visit because of `cf-cache-status: DYNAMIC` and `max-age=0` is a caching problem, not a slow backend. Do not fetch the page again with curl to learn these. - Network accessline 165
problem, not a slow backend. Do not fetch the page again with curl to learn
skills/perfgraph/references/interpretation.md
- Network accessline 98
There is no need to fetch the page again with curl to learn these.
How the signals fit together
Facts from a static read of the files at the pinned commit. They describe what the code does, not why.
Signal confidence: 4 facts
- Network access in prose of the SKILL.mdperfgraph/SKILL.md:163Low confidence
- Network access in prose of the SKILL.mdperfgraph/SKILL.md:164Low confidence
- Network access in prose of the SKILL.mdperfgraph/SKILL.md:165Low confidence
- Network access in prose of documentationperfgraph/references/interpretation.md:98Low confidence
Works with
| Agent | Status | Evidence | Install to |
|---|---|---|---|
| Claude Code | Compatible | Standard SKILL.md skills/perfgraph/SKILL.md | .claude/skills/<skill-name>/ |
| Codex | Native | Manifest AGENTS.md | .agents/skills/<skill-name>/ |
| Cursor | Compatible | Standard SKILL.md skills/perfgraph/SKILL.md | .cursor/skills/<skill-name>/ |
| Gemini CLI | Compatible | Standard SKILL.md skills/perfgraph/SKILL.md | .gemini/skills/<skill-name>/ |
| GitHub Copilot | Compatible | Standard SKILL.md skills/perfgraph/SKILL.md | .github/skills/<skill-name>/ |
| OpenCode | Compatible | Standard SKILL.md skills/perfgraph/SKILL.md | .opencode/skills/<skill-name>/ |
- Native The repository ships a manifest, folder or frontmatter field for this agent.
- Compatible A standard SKILL.md that this agent can read.
- Unknown No evidence either way.
Derived automatically from paths, manifests and frontmatter. Not tested on each agent.
