Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add spruikco/fat-agent-skill/plugin install fat-agentWrote 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/commands/spruikco/fat-agent-skill/fat-hq)<a href="https://agentmods.dev/commands/spruikco/fat-agent-skill/fat-hq"><img src="https://agentmods.dev/badge/commands/spruikco/fat-agent-skill/fat-hq/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/commands/spruikco/fat-agent-skill/fat-hq"><img src="https://agentmods.dev/badge/commands/spruikco/fat-agent-skill/fat-hq.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 | $0.00022 | $0.00290 |
| Opus 5.5 | $0.00009 | $0.00116 |
| Sonnet 5.5 | $0.00004 | $0.00058 |
| Haiku 4.5 | $0.00002 | $0.00029 |
Grade A, and why
fat-hq 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 8d 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
/fat-hq: FAT HQ dashboard
FAT HQ keeps your audits, charts scores over time, re-checks sites on a schedule and emails you when something breaks. It is optional; the plugin works fully without it. Accounts and plugin keys: https://fatagent.app
Arguments: $ARGUMENTS
login <key>: runpython ${CLAUDE_PLUGIN_ROOT}/scripts/fat_hq.py login <key>and report the result.upload [URL]: runpython ${CLAUDE_PLUGIN_ROOT}/scripts/fat_hq.py upload(add--url URLif given) from the project directory that holds.fat-work/. If there is no.fat-work/scores.json, say so and offer to run/fat-auditfirst.statusor nothing: runpython ${CLAUDE_PLUGIN_ROOT}/scripts/fat_hq.py status. If no key is saved, explain how to make one at https://fatagent.app/app/keys.
Never print or repeat a full key back to the user after saving it.
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.
- 8d ago Changed 5d5aaab1e748
- 1mo ago First seen · 26 lines · 22 tokens per session scan A 9a745b9e09df
fat-hq is a command published in the GitHub repository spruikco/fat-agent-skill (40 stars, last pushed 7d ago), licensed MIT. It adds 22 tokens to every session and 290 once invoked, about $0.0001 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 2026-09-25.
fat-hq compared with commands from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| fat-hqspruikco/fat-agent-skill | Command | 40 | 7d ago | MIT | A | 22 | Claude Code |
| checklistgithub/spec-kit | Command | 148k | yesterday | MIT | A | 13 | Claude Code |
| clarifygithub/spec-kit | Command | 148k | yesterday | MIT | A | 27 | Claude Code |
| specifygithub/spec-kit | Command | 148k | yesterday | MIT | A | 13 | Claude Code |
| analyzegithub/spec-kit | Command | 148k | yesterday | MIT | A | 26 | Claude Code |
| convergegithub/spec-kit | Command | 148k | yesterday | MIT | A | 35 | Claude Code |
| implementgithub/spec-kit | Command | 148k | yesterday | MIT | A | 14 | Claude Code |