Borrowing it
Nothing to install: this file belongs to conorbronsdon/yt-analytics-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/conorbronsdon/yt-analytics-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/conorbronsdon/yt-analytics-mcpWrote 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/instructions/conorbronsdon/yt-analytics-mcp/agents-md)<a href="https://agentmods.dev/instructions/conorbronsdon/yt-analytics-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/conorbronsdon/yt-analytics-mcp/agents-md/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/instructions/conorbronsdon/yt-analytics-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/conorbronsdon/yt-analytics-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00819 | $0.00819 |
| Opus 5.5 | $0.00328 | $0.00328 |
| Sonnet 5.5 | $0.00164 | $0.00164 |
| Haiku 4.5 | $0.00082 | $0.00082 |
Grade A, and why
yt-analytics-mcp AGENTS.md scanned grade A with 1 finding 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 today.
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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
Enforced by construction: `src/client.ts` issues only `fetch(url, { headers })` with no `method`, so every request is a GET. Unenforced by a test — if you add a `method` option, nothing currently fails. Treat the class c How it starts
The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
The repository contract for every agent runtime. Codex and other runtimes read this file directly; Claude Code reads it through CLAUDE.md, which imports it.
Working notes for agents (and humans) editing this repo. Every rule below either names the check that enforces it or is marked unenforced.
What this is
An MCP server wrapping the YouTube Analytics API v2. Nine tools, all reads, all scoped to the channel the OAuth credential owns.
The invariants
Every tool stays read-only.
Enforced: src/__tests__/annotations.e2e.test.ts:131 filters a real tools/list for anything without readOnlyHint: true and asserts the list is empty. Line 146 injects a fake yt_delete_everything tool as a negative control, proving the filter can go red. Adding a write tool fails CI.
The server can only read channel==MINE.
Enforced: src/client.ts:145 writes ids=channel==MINE unconditionally, and ReportQuery (src/client.ts:34) has no ids field, so an override is not expressible. src/__tests__/client.test.ts:103 passes a hostile ids past the type and asserts the built URL is still MINE. Do not reintroduce q.ids ?? "channel==MINE" — a default is not an invariant.
No write path in the HTTP client.
Enforced by construction: src/client.ts issues only fetch(url, { headers }) with no method, so every request is a GET. Unenforced by a test — if you add a method option, nothing currently fails. Treat the class comment at src/client.ts:52 as the contract.
stdout stays clean JSON-RPC.
Enforced by review, not by CI: there are zero console.log calls in src/ (verify with grep -rn "console\.log" src/ | grep -v __tests__, which must print nothing). All diagnostics use console.error.
Computed values are labelled.
Any response field the server calculated is listed under computedFields alongside the API's own numbers — see src/server.ts:489, :770, :1024. Required by YouTube's Developer Policies §III.E.4.h, which prohibits passing derived metrics off as API data. Unenforced by any test; it is a review gate.
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.
- today Changed · +2 lines · +34 tokens per session 05ec008bea84
- 2mo ago First seen · 45 lines · 785 tokens per session scan A 13b9da81a65a
yt-analytics-mcp AGENTS.md is an instructions file published in the GitHub repository conorbronsdon/yt-analytics-mcp (2 stars, last pushed today), licensed MIT. It adds 819 tokens to every session, about $0.0033 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
yt-analytics-mcp AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| yt-analytics-mcp AGENTS.mdconorbronsdon/yt-analytics-mcp | Instructions file | 2 | today | MIT | A | 819 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |