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 instructions/chrischall/gogcli-mcp/claude-mdgit clone --depth 1 https://github.com/chrischall/gogcli-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/chrischall/gogcli-mcp/claude-md)<a href="https://agentmods.dev/instructions/chrischall/gogcli-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/chrischall/gogcli-mcp/claude-md.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 5.1 | $0.07645 | $0.07645 |
| Opus 5 | $0.03823 | $0.03823 |
| Sonnet 5 | $0.01529 | $0.01529 |
| Haiku 4.5 | $0.00764 | $0.00764 |
Grade A, and why
gogcli-mcp CLAUDE.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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
runner.ts # only module touching child_process; exports run() with Spawner DI How it starts
The opening of the file, as written. The whole thing — 363 lines — stays where its author put it; the contents beside it link to each section on GitHub.
gogcli-mcp
Monorepo of MCP servers wrapping gogcli — gives Claude read/write access to Google Workspace (Sheets, Docs, Gmail, Calendar, Drive, Slides, Classroom, Tasks, Contacts). Each package is a standalone MCP server using stdio transport.
Packages
All under packages/* as an npm workspace. Single source of truth for version: root package.json (all packages share it).
| Package | Path | Scope |
|---|---|---|
gogcli-mcp |
packages/gogcli-mcp |
Base — common subset of every service, plus gog_<service>_run escape hatches |
gogcli-mcp-sheets |
packages/gogcli-mcp-sheets |
Auth + Sheets (base + extras: tabs, formatting, named ranges, …) |
gogcli-mcp-docs |
packages/gogcli-mcp-docs |
Auth + Docs (base + extras: insert, export, sed, comments, …) |
gogcli-mcp-drive |
packages/gogcli-mcp-drive |
Auth + Drive (base + extras: upload, permissions, shared drives, …) |
gogcli-mcp-slides |
packages/gogcli-mcp-slides |
Auth + Slides (base + authoring extras) |
gogcli-mcp-classroom |
packages/gogcli-mcp-classroom |
Auth + Classroom (base + CRUD/admin extras) |
gogcli-mcp-gmail |
packages/gogcli-mcp-gmail |
Auth + Gmail (base + threads, labels, drafts, bulk ops) |
gogcli-mcp-contacts |
packages/gogcli-mcp-contacts |
Auth + Contacts (base + People API extras) |
gogcli-mcp-calendar |
packages/gogcli-mcp-calendar |
Auth + Calendar (base + Meet space management) |
Commands
npm install # install all workspaces
npm run build # tsc --noEmit + esbuild bundle for every package
npm test # vitest across all packages (100% coverage gate)
npm run typecheck # tsc --noEmit across all packages
# Single package
npm run build --workspace=packages/gogcli-mcp-sheets
npm test --workspace=packages/gogcli-mcp-docs
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 · +99 lines · +2,198 tokens per session af4ab32d7d7f
- yesterday Changed 12bd4159d774
- 5d ago First seen · 264 lines · 5,447 tokens per session scan A a843a3bbe719
gogcli-mcp CLAUDE.md is an instructions file published in the GitHub repository chrischall/gogcli-mcp (1 stars, last pushed today), licensed MIT. It adds 7,645 tokens to every session, about $0.0382 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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