Agent Skill
Firebase Firestore skill
firebase-firestorefirebase/agent-skillsskills/firebase-firestore/SKILL.md
Sets up, manages, queries, and configures Cloud Firestore databases (Standard/Enterprise edition), including data modeling, security rules, indexes, and SDK integrations (Web, Python, iOS, Android, Flutter). Use when creating/listing Firestore databases, defining data models/indexes, writing SDK queries, or integrating Firestore SDKs. For authoring or modifying Firestore Security Rules (firestore.rules), delegate to the firestore-rules-author subagent if subagent delegation is available, or use firestore-rules-creation otherwise. Don't use for Firebase Hosting, Data Connect, Auth, Storage/GCS, Crashlytics, Functions, or BigQuery.
always on
138 tokname + description
once used
897 tokSKILL.md body
bundled files
1464 KB
installs
133kskills.sh
Install the Firebase Firestore skill
Skills CLI (Claude Code, Codex, Cursor and others)
npx skills add https://github.com/firebase/agent-skills --skill firebase-firestore
Claude Code, by hand (all projects)
git clone --depth 1 https://github.com/firebase/agent-skills.git /tmp/agent-skills mkdir -p ~/.claude/skills cp -R /tmp/agent-skills/skills/firebase-firestore ~/.claude/skills/firebase-firestore
For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.
What it costs your context
Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.
| When | What loads | Cost |
|---|---|---|
| Every session | Name and description | 138 tok |
| When the agent uses it | The SKILL.md instructions | 897 tok |
| Only if opened | 14 bundled files (64 KB) | varies |
Until it is used, firebase-firestore costs about 9.9× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 13 skills from firebase/agent-skills would load 1,052 tokens of descriptions. Skills vs MCP study
Checks
Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.
Checked 2026-10-22 · method
What's inside
The headings of its SKILL.md. Read the full file on GitHub.
- Cloud Firestore Database and Operations
- 1. Instance Selection and Edition Detection
- A. Instance Found
- B. No Instance Found (or New Requested)
- 2. Specialized Guides
- Standard Edition (references/standard/)
- Enterprise Edition / Native Mode (references/enterprise/)
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