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 trtmn/agent-plugins --skill mastodon-cligit clone --depth 1 https://github.com/trtmn/agent-pluginsWrote 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/trtmn/agent-plugins/mastodon-cli)<a href="https://agentmods.dev/skills/trtmn/agent-plugins/mastodon-cli"><img src="https://agentmods.dev/badge/skills/trtmn/agent-plugins/mastodon-cli/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/trtmn/agent-plugins/mastodon-cli"><img src="https://agentmods.dev/badge/skills/trtmn/agent-plugins/mastodon-cli.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 | $0.00160 | $0.01238 |
| Opus 5.5 | $0.00064 | $0.00495 |
| Sonnet 5.5 | $0.00032 | $0.00248 |
| Haiku 4.5 | $0.00016 | $0.00124 |
Grade A, and why
mastodon-cli 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.
How it starts
The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mastodon CLI via toot
The user has the toot CLI installed and authenticated against their Mastodon instance. Use toot for all Mastodon interactions. Never use browser automation or direct API calls.
Safety: Confirm Before Visible Actions
Any action that is publicly visible or modifies state requires explicit confirmation from the user before executing. This includes:
- Posting a status (
toot post) - Boosting (
toot reblog) - Favouriting (
toot favourite) - Following/unfollowing
- Blocking/muting
- Deleting a status
- Pinning/unpinning
Exception: If the user explicitly tasks you to post (e.g., "post this to masto", "toot this out"), go ahead without a separate confirmation step — they already told you to do it.
Read-only actions (timelines, search, notifications, viewing profiles) never need confirmation.
Command Reference
Reading
| Task | Command |
|---|---|
| Home timeline | toot timelines home |
| Public/federated | toot timelines public |
| Local timeline | toot timelines public --local |
| Hashtag timeline | toot timelines tag <hashtag> |
| User's posts | toot timelines account <account> |
| Favourited posts | toot timelines favourites |
| Single status | toot status <id> |
| Thread | toot thread <id> |
| Notifications | toot notifications |
| Bookmarks | toot bookmarks |
| Search | toot search "<query>" (optionally -t accounts|statuses|hashtags) |
Add --limit N to control how many results come back (default 20, max 40). Add --json for machine-readable output when you need to process the data.
Posting
toot post "Status text here"
Key flags:
-v public|unlisted|private|direct— visibility (default: public)-m <file>— attach media (repeat for multiple)-d "description"— alt text for media (one per-m, always include for accessibility)-s— mark as sensitive-p "CW text"— content warning / spoiler-r <status_id>— reply to a status-R— reply to your last post (continue thread)--scheduled-in "1h30m"— schedule for later-l en— language code--poll-option "A" --poll-option "B"— create a poll
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 · 113 lines · 160 tokens per session scan A ef8069cb92c0
mastodon-cli is a skill published in the GitHub repository trtmn/agent-plugins (2 stars, last pushed 11d ago), licensed Unlicense. It adds 160 tokens to every session and 1,238 once invoked, about $0.0006 per session on Opus 5.5. 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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