firebase SKILL.md skillA
firebase from darknecrocities/skillbuilder is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add darknecrocities/skillbuilder/firebase@git:20261029.b0bed3fPins git:20261029.b0bed3f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- darknecrocities/skillbuilder
- Path
skills/firebase/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261029.b0bed3f, committed Oct 29, 2026
- First version recorded
- Oct 26, 2026
- Size
- 6,288 bytes
- Repository stars
- 13
- License
- none declared
Firebase serverless architecture, Cloud Firestore schema design, Security Rules (firestore.rules, storage.rules), Firebase Auth, and Admin SDK.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Firebase Serverless, Firestore & Security Rules (`/firebase`) > **Philosophy**: *Zero open security rules. Client SDKs are untrusted. Enforce request.auth scoping on every document. Batch writes capped at 500 ops. Atomic transactions for financial balances. Composite indexes for multi-field queries.* This skill establishes defensive engineering standards for building and deploying applications backed by **Google Firebase** and **Cloud Firestore**. --- ## 1. Quick Navigation & Progressive Disclosure | Resource Type | Document | Description | | :--- | :--- | :--- | | **Reference** | [references/firestore-schema-and-rules.md](references/firestore-schema-and-rules.md) | Subcollection design, denormalization patterns, hardened firestore.rules. | | **Reference** | [references/firebase-auth-and-admin-sdk.md](references/firebase-auth-and-admin-sdk.md) | Session cookie validation, Admin SDK privilege isolation, ADC authentication. | | **Utility** | [scripts/verify_firebase_rules.py](scripts/verify_firebase_rules.py) | Audits security rules for open access vulnerabilities, unbounded collections, and missing auth. | --- ## 2. The Core Firebase Architecture Gates ```mermaid …
Read the whole file at its exact version.
How to install
mdr add darknecrocities/skillbuilder/firebase@sha256:e18a98adda8d0d0cThe line at the top of this page pins the label git:20261029.b0bed3f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_hiq6hcjwl4gx4u2a)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 26, 2026 and Oct 29, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261029.b0bed3f latest | 2026-10-29 | b0bed3f | 6,288 B | A | view · diff |
| git:20261029.dcec3fc | 2026-10-29 | dcec3fc | 5,614 B | A | view · diff |
| git:20261026.1dfd47e | 2026-10-26 | 1dfd47e | 4,725 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6288 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
darknecrocities/skillbuilder · 13 stars · license none declared · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hiq6hcjwl4gx4u2a GET https://markdownregistry.com/api/v1/resolve?ref=darknecrocities/skillbuilder/firebase GET https://markdownregistry.com/api/v1/blob/e18a98adda8d0d0c07cbbaf575685372b5682b7ecef0bd2db46683d9bacc75c7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from darknecrocities/skillbuilder
Every file in darknecrocities/skillbuilder