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 chrischall/gogcli-mcp --skill gogcli-mcp-gmailgit 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/skills/chrischall/gogcli-mcp/gogcli-mcp-gmail)<a href="https://agentmods.dev/skills/chrischall/gogcli-mcp/gogcli-mcp-gmail"><img src="https://agentmods.dev/badge/skills/chrischall/gogcli-mcp/gogcli-mcp-gmail.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 | $0.00075 | $0.02059 |
| Opus 5 | $0.00037 | $0.01030 |
| Sonnet 5 | $0.00015 | $0.00412 |
| Haiku 4.5 | $0.00007 | $0.00206 |
Grade A, and why
gogcli-mcp-gmail 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 7d 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 — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.
gogcli-mcp-gmail
Extended Gmail MCP server via gogcli — 61 tools: 8 auth + 4 base Gmail + 49 extra dedicated Gmail tools.
- Source: github.com/chrischall/gogcli-mcp
Requirements
- gogcli installed and authenticated
- Node.js 18 or later
Setup
{
"mcpServers": {
"gogcli-gmail": {
"command": "npx",
"args": ["-y", "gogcli-mcp-gmail"],
"env": {
"GOG_ACCOUNT": "[email protected]"
}
}
}
}
Extra Gmail Tools
Read
| Tool | What it does |
|---|---|
gog_gmail_raw |
Raw Gmail API JSON for a message |
gog_gmail_attachment |
Download an attachment by attachmentIndex (or legacy attachmentId) and deliver its contents — inline when within inlineMaxBytes (3 MiB default), else uploaded to Drive with a link (deliver: auto/inline/drive/off) |
gog_gmail_url |
Print web URLs for threads |
gog_gmail_history |
List history events since a historyId |
gog_gmail_messages_search |
Search individual messages, not threads — one row per message |
Threads
| Tool | What it does |
|---|---|
gog_gmail_thread_get |
Get a thread with all messages |
gog_gmail_thread_modify |
Modify labels on a thread |
gog_gmail_thread_attachments |
List/download all attachments in a thread |
Labels
| Tool | What it does |
|---|---|
gog_gmail_labels_list |
List all labels |
gog_gmail_labels_get |
Get a label's details and counts |
gog_gmail_labels_create |
Create a new label |
gog_gmail_labels_rename |
Rename a label |
gog_gmail_labels_delete |
Delete a label |
gog_gmail_labels_modify |
Modify labels on one or more threads |
gog_gmail_labels_style |
Change a label's color or visibility |
Bulk operations
| Tool | What it does |
|---|---|
gog_gmail_archive |
Archive by IDs or query |
gog_gmail_mark_read |
Mark read by IDs or query |
gog_gmail_mark_unread |
Mark unread by IDs or query |
gog_gmail_trash |
Trash by IDs or query |
gog_gmail_message_modify |
Modify labels on a single message |
gog_gmail_batch_delete |
Permanently delete multiple messages |
gog_gmail_batch_modify |
Modify labels on multiple messages |
What ships with it
15 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.
- CHANGELOG.md 781 B
- manifest.json 11 KB
- mint.yaml 4.2 KB
- package.json 1.1 KB
- README.md 13 KB
- src/index.ts 550 B runs code
- src/tools/gmail-extra.ts 196 KB runs code
- tests/tools/attachment-index-resolve.test.ts 3.8 KB runs code
- tests/tools/draft-diff-arithmetic.test.ts 2.7 KB runs code
- tests/tools/draft-fork-signature.test.ts 3.3 KB runs code
- tests/tools/draft-fork.test.ts 46 KB runs code
- tests/tools/draft-write-vs-refetch.test.ts 6.3 KB runs code
- tests/tools/gmail-extra.test.ts 169 KB runs code
- tsconfig.json 240 B
- vitest.config.ts 327 B runs code
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.
- 7d ago First seen · 140 lines · 75 tokens per session scan A 6e604534d43e
gogcli-mcp-gmail is a skill published in the GitHub repository chrischall/gogcli-mcp (1 stars, last pushed yesterday), licensed MIT. It adds 75 tokens to every session and 2,059 once invoked, about $0.0004 per session on Opus 5. 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 2026-08-31.
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