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 agentmods add skills/tutur3u/platform/firebase-basicsnpx skills add tutur3u/platform --skill firebase-basicsgit clone --depth 1 https://github.com/tutur3u/platformWrote 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/tutur3u/platform/firebase-basics)<a href="https://agentmods.dev/skills/tutur3u/platform/firebase-basics"><img src="https://agentmods.dev/badge/skills/tutur3u/platform/firebase-basics.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00073 | $0.01652 |
| Opus 5 | $0.00036 | $0.00826 |
| Sonnet 5 | $0.00015 | $0.00330 |
| Haiku 4.5 | $0.00007 | $0.00165 |
Grade A, and why
firebase-basics 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 4d 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.
This is a copy
84% identical to firebase-basics — 242 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prerequisites
Complete these setup steps before proceeding:
-
Local Environment Setup: Verify the environment is properly set up so we can use Firebase tools:
- Run
npx -y firebase-tools@latest --versionto check if the Firebase CLI is installed. - Verify if the Firebase MCP server is installed using your existing tools.
- CRITICAL: Before configuring any extensions or agent environments below, you MUST read references/local-env-setup.md.
- DO NOT SKIP this step: if 'firebase-basics' is the only Firebase skill
available to you, you must follow the reference for your agent environment
to set up the full suite of Firebase skills:
- Gemini CLI: Review references/setup/gemini_cli.md
- Antigravity: Review references/setup/antigravity.md
- Android Studio: Review references/setup/android_studio.md
- Claude Code: Review references/setup/claude_code.md
- Cursor: Review references/setup/cursor.md
- GitHub Copilot: Review references/setup/github_copilot.md
- Other Agents: Review references/setup/other_agents.md
- Run
-
Authentication: Ensure you are logged in to Firebase so that commands have the correct permissions. Run
npx -y firebase-tools@latest login. For environments without a browser (e.g., remote shells), usenpx -y firebase-tools@latest login --no-localhost.- The command should output the current user.
- If you are not logged in, follow the interactive instructions from this command to authenticate.
-
Active Project: Most Firebase tasks require an active project context.
[!IMPORTANT] For Agents: Before proceeding with project configuration, you MUST pause and ask the developer if they prefer to:
- Provide an existing Firebase Project ID, or
- Create a new Firebase project.
-
If using an existing Project ID:
- Check the current project by running
npx -y firebase-tools@latest use. - If the command outputs
Active Project: <project-id>, confirm with the user if this is the intended project. - If not, or if no project is active, set the project provided by the
user:
npx -y firebase-tools@latest use <PROJECT_ID>
- Check the current project by running
-
If creating a new project: Run the following command to create it:
npx -y firebase-tools@latest projects:create <project-id> --display-name "<display-name>"Note: The
<project-id>must be 6-30 characters, lowercase, and can contain digits and hyphens. It must be globally unique.
What ships with it
19 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.
- references/android_setup.md 1.8 KB
- references/firebase-cli-guide.md 464 B
- references/firebase-service-init.md 692 B
- references/flutter_setup.md 4.7 KB
- references/ios_setup.md 4.0 KB
- references/local-env-setup.md 2.7 KB
- references/refresh/android_studio.md 1.3 KB
- references/refresh/antigravity.md 2.1 KB
- references/refresh/claude.md 380 B
- references/refresh/gemini-cli.md 482 B
- references/refresh/other-agents.md 2.2 KB
- references/setup/android_studio.md 658 B
- references/setup/antigravity.md 3.3 KB
- references/setup/claude_code.md 1.9 KB
- references/setup/cursor.md 3.0 KB
- references/setup/gemini_cli.md 2.0 KB
- references/setup/github_copilot.md 3.3 KB
- references/setup/other_agents.md 3.4 KB
- references/web_setup.md 1.6 KB
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.
- 4d ago First seen · 149 lines · 73 tokens per session scan A b6cf2d3a95f4
firebase-basics is a skill published in the GitHub repository tutur3u/platform (53 stars, last pushed yesterday), licensed Apache-2.0. It adds 73 tokens to every session and 1,652 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 84% identical to firebase-basics, differing in 242 lines, and is treated as a copy.
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