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 sandraschi/mastodon-mcp --skill mastodon-outboxgit clone --depth 1 https://github.com/sandraschi/mastodon-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/sandraschi/mastodon-mcp/mastodon-outbox)<a href="https://agentmods.dev/skills/sandraschi/mastodon-mcp/mastodon-outbox"><img src="https://agentmods.dev/badge/skills/sandraschi/mastodon-mcp/mastodon-outbox/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/skills/sandraschi/mastodon-mcp/mastodon-outbox"><img src="https://agentmods.dev/badge/skills/sandraschi/mastodon-mcp/mastodon-outbox.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 | $0.00000 | $0.00167 |
| Opus 5.5 | $0.00000 | $0.00067 |
| Sonnet 5.5 | $0.00000 | $0.00033 |
| Haiku 4.5 | $0.00000 | $0.00017 |
Grade A, and why
mastodon-outbox 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 1mo 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.
What it actually says
Mastodon Outbox Skill
Role
Hold promotion drafts from fleet-public-relations-mcp until a human approves, then publish to Mastodon (dry-run by default).
Flow
- Fleet-PR:
pr_draft→pr_approve_draft→pr_queue_fediverse - This server: outbox
pending - Human: Outbox UI or
outbox_approve outbox_publish— posts only ifMASTODON_DRY_RUN=0
Tools
mastodon_social_tool(operation=…)— outbox_* / timeline / notifications / accounts_listmastodon_help— ports and flow summary
Safety
Never auto-publish. Never bypass outbox for fleet drafts.
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.
- 1mo ago First seen · 22 lines · 0 tokens per session scan A df8b0034d80c
mastodon-outbox is a skill published in the GitHub repository sandraschi/mastodon-mcp (1 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 167 tokens. 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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