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auditing-experiments-flags

posthog

·

Last changed
Hardened

This skill has been hardened by Chainguard

Last changed

This version passed the hardening gate. Hardening applied 2 targeted changes and preserved all other text. Classified findings before hardening: 3. Classified findings closed: 1. Classified findings remaining: 2. Unclassified scanner findings remaining: 0. Review findings closed: 4. Review findings remaining: 7.


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Open after hardening

2

Medium

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references/finding-taxonomy.md

Safety Bypass & Harmful Content

—

High
Closed
references/finding-taxonomy.md

Prompt Injection

Direct prompt injection

Medium
Open
references/remediation-actions.md

Prompt Injection

Direct prompt injection

Medium
Open

3 findings


SKILL.md

Auditing experiments and feature flags

This skill teaches you how to run configuration audits on experiments and feature flags. All checks use the experiment and feature flag read tools (experiment-get, experiment-list, feature-flag-get-definition, feature-flag-get-all) — no SQL queries are needed for Phase 1 checks.

Usage modes

Quick check (single entity)

When the user asks about a specific experiment or flag:

  1. Fetch the entity via experiment-get (experiment ID) or feature-flag-get-definition (numeric flag ID).
  2. Apply the relevant checks from experiment checks or flag checks.
  3. Report findings inline as markdown, grouped by severity (CRITICAL first, then WARNING, then INFO).
  4. Include entity links as [Experiment: name](/experiments/id) or [Flag: key](/feature_flags/id).

Scoped audit (one domain)

When the user asks to audit all experiments or all flags:

  1. Bulk-fetch via experiment-list or feature-flag-get-all.
  2. Run all checks for that domain against each entity.
  3. Group findings by severity, then by entity.
  4. Report as inline markdown.

Full audit (comprehensive)

When the user asks for a comprehensive audit of both experiments and flags:

  1. Fetch all experiments via experiment-list and all flags via feature-flag-get-all.
  2. Run all experiment checks and all flag checks.
  3. Apply recurring patterns to identify patterns across multiple findings.
  4. report inline.

Output format

For each finding, include:

  • Severity badge: 🔴 CRITICAL, 🟡 WARNING, or 🔵 INFO
  • Check name: Which check produced this finding
  • Entity link: Markdown link to the entity
  • What's wrong: One-sentence description
  • Action: What to do about it (see remediation actions)

Example:

Handling unavailable data

Some checks require activity logs (feature-flags-activity-retrieve for flags), which may not be available in every session. If activity log data is unavailable:

  • Skip checkActivityHistory (experiment check) entirely.
  • Skip the "toggle instability" and "never activated" sub-checks in flag lifecycle checks.
  • In your report, note which checks were skipped and why:

Partial failures

If a fetch call fails for some entities:

  • Continue with the entities you could fetch.
  • Report which entities could not be assessed and why.
  • Do not silently omit entities from the audit.

Reference files

Install

Install with chainctl
chainctl skill install public/posthog/auditing-experiments-flags:latest
Get started with chainctl
View source

Harden your own skills

Bring Chainguard's hardening pipeline to your first-party skills — custom rulesets, automated remediation, full audit trail.

Provenance

Upstream sourcehttps://github.com/posthog/skills
Upstream commit57277e77ba1c439ed3c7d1cc98c274c0cbcf2605
OCI reference

skills.cgr.dev/public/github.com/posthog/skills/omnibus/auditing-experiments-flags:latest

License

MIT

Files

HARDENING.md

LICENSE

SKILL.md

references/experiment-checks.md

references/finding-taxonomy.md

references/flag-checks.md

references/remediation-actions.md

references/synthesis-patterns.md


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