Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add ashish7802/awesome-api-skills --skill firebasegit clone --depth 1 https://github.com/ashish7802/awesome-api-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/ashish7802/awesome-api-skills/firebase)<a href="https://agentmods.dev/skills/ashish7802/awesome-api-skills/firebase"><img src="https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/firebase/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/ashish7802/awesome-api-skills/firebase"><img src="https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/firebase.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00441 |
| Opus 5.5 | $0.00000 | $0.00176 |
| Sonnet 5.5 | $0.00000 | $0.00088 |
| Haiku 4.5 | $0.00000 | $0.00044 |
Grade A, and why
firebase scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Firebase Admin API Skill
Overview
Firebase Admin SDK allows privileged server environments to interact with Firestore, Auth, and Cloud Messaging.
Installation
npm install firebase-admin
pip install firebase-admin
Authentication
Authenticate using a Google Cloud Service Account key JSON file or Application Default Credentials (ADC).
Core Concepts
- Firestore: NoSQL document database.
- Custom Tokens: JWTs minted on the server to log users into the client SDK.
- FCM: Firebase Cloud Messaging for push notifications.
Common Workflows
- Initialize
initializeApp({ credential: cert(serviceAccount) }). - Access Firestore:
getFirestore(). - Perform operations bypassing security rules.
Error Handling
Catch FirebaseError. Error codes match RPC statuses (e.g., not-found, already-exists).
Security
Service accounts have absolute God-mode access. Never deploy an Admin SDK service account key to a client application.
Rate Limits
Firestore allows 10,000 writes per second per database. Batch operations are limited to 500 documents per batch.
Best Practices
Use batch() for multiple writes to ensure atomicity. Use runTransaction() when a write depends on the current value of a document.
Troubleshooting
If initialized multiple times, the SDK throws a 'default app already exists' error. Check getApps().length before initializing.
References
Why use this skill
Use this when your agent works with firebase — structured patterns beat pasted docs and prevent common hallucinations.
AI pitfalls
- Inventing column names or schema fields
- Using deprecated driver methods or wrong connection strings
- Omitting connection pooling or transaction boundaries
Production checklist
- Migrations version-controlled and applied via CI
- Connection limits and pooling configured
- Backups and restore procedure documented
Related skills
- No graph relationships yet — see the knowledge graph in the docs site.
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 61 lines · 0 tokens per session scan A c65f3ce6339a
firebase is a skill published in the GitHub repository ashish7802/awesome-api-skills (13 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 441 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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