firebase-security-rules-auditor agent skill by firebase
Audits Firebase Firestore and Cloud Storage security rules for vulnerabilities including privilege escalation, role bypasses, and resource exhaustion.
At a glance
| Publisher | Firebase Official |
|---|---|
| Repository | firebase/skills (11 listed skills) |
| Category | Security |
| License | Apache-2.0 |
| Last commit | October 13, 2026 (repository) |
| SKILL.md | 76 lines, 479 words |
| Bundled files | 1 file |
| Quality score | 78/100 · C Passes all seven graded checks |
| Security scan | Not scanned |
| README badge | Get the listing badge and raise the score |
Before you install
Read from the skill's files at the directory's October 19, 2026 snapshot: what ships with it, what its code reads, and the terms it is published under.
- Bundled scripts: none.
- License: Apache-2.0, an open-source or open-content license.
Install firebase-security-rules-auditor
The skills CLI works with Claude Code, Codex, Cursor and other agents; the other routes copy the folder by hand.
npx skills add https://github.com/firebase/skills/tree/main/skills/firebase-security-rules-auditortmp="$(mktemp -d)"
git clone --depth 1 https://github.com/firebase/skills.git "$tmp/repo"
mkdir -p .claude/skills
cp -R "$tmp/repo/"skills/firebase-security-rules-auditor .claude/skills/
rm -rf "$tmp"python3 ~/.codex/skills/.system/skill-installer/scripts/install-skill-from-github.py \
--repo firebase/skills \
--path skills/firebase-security-rules-auditorfirebase/skills is third-party code. Read SKILL.md and any bundled scripts before you install it.
How the author describes it
Audits Firebase (Firestore, Cloud Storage) security rules for vulnerabilities, privilege escalation, role bypasses, create vs update inconsistencies, resource exhaustion, type safety, size limits, and hasOnly ownership checks. Use when auditing/reviewing rules, running red-team rule assessments, or scoring against auditor checklists. Don't use for Firebase CLI (login, deploy), Auth, Crashlytics, Remote Config, or database queries.
From the description field of SKILL.md. Agents read this line to decide when to load the skill.
Sections in SKILL.md
- Assessment: Security Validator (Red Team Edition)
- Mandatory Audit Checklist:
- Admin Bootstrapping & Privileges:
- Scoring Criteria (1-5):
Files in the skill folder
SKILL.md
Suede Skill Check: 78/100 · C
Report snapshot · · graded-v2
The rubric totals 100 points; published scores are capped at 99. Security scan: not scanned.
Source revision: 306cc1844c47. Report version e04cda50020e. Badge URLs follow the latest listing; save the report to keep this version.
Download report · Request a fresh review
What to review next
- Example request: 0 of 3 points. 3 when the description quotes an example request (3–60 characters in quotation marks).
- Instruction depth: 4 of 7 points. 7 for a SKILL.md body of 500–3,000 words; 4 for 250–4,500; 1 for 100 or more.
- Reference files: 0 of 3 points. 3 when the skill folder ships a references/, reference/ or docs/ folder.
Add declarations and bundled files when they describe the skill’s actual needs. Update the source, then request a fresh review with the changed commit or PR.
firebase-security-rules-auditor passes the required frontmatter check and all seven graded checks, which cover the SKILL.md format, a declared license and a commit in the last year. Those checks earn 56 of the score’s points; the rest come from description quality, instruction depth, bundled files, maintenance and curated-list citations. How the score works.
See the checks and points
| Check | Result |
|---|---|
| Frontmatter parses and declares a name and a description | Pass |
| Name uses lowercase letters, digits and hyphens, 64 characters or fewer | Pass |
| Name matches the skill's folder name | Pass |
| Description is between 50 and 1,024 characters | Pass |
| Description says when an agent should use the skill | Pass |
| SKILL.md body is 500 lines or fewer | Pass |
| A license is declared in the frontmatter or the repository | Pass |
| Repository has a commit in the last 12 months | Pass |
| Score component | Points |
|---|---|
| Structural checks | 56 of 56 |
| Description length | 5 of 5 |
| Boundary clause | 4 of 4 |
| Example request | 0 of 3 |
| Instruction depth | 4 of 7 |
| Reference files | 0 of 3 |
| Bundled scripts | 0 of 2 |
| Recent maintenance | 9 of 9 |
| Curated-list citations | 0 of 7 |
| Tool permissions declared | 0 of 2 |
| Compatibility declared | 0 of 2 |
Show the listing and raise the score
firebase-security-rules-auditor is listed with 78/100 · C. This badge links to its Suede listing. Skills scoring 80–99 add a numeric and a letter quality shield; the largest open points for firebase-security-rules-auditor are example request (3), instruction depth (3) and reference files (3). Send your repository and the points you want to raise, then request a fresh review after updating the skill.
[](https://skills.suedeai.ai/directory/firebase/skills/firebase-security-rules-auditor/)<a href="https://skills.suedeai.ai/directory/firebase/skills/firebase-security-rules-auditor/"><img src="https://skills.suedeai.ai/directory/badge.svg" alt="Suede Skills Directory: listed" height="20"></a>Where this skill is cited
firebase/skills is listed from its publisher's official collection or a listing request.