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 commands/maxwellcalkin/sentinel-ai/scangit clone --depth 1 https://github.com/MaxwellCalkin/sentinel-aiWrote 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/maxwellcalkin/sentinel-ai/scan)<a href="https://agentmods.dev/commands/maxwellcalkin/sentinel-ai/scan"><img src="https://agentmods.dev/badge/commands/maxwellcalkin/sentinel-ai/scan.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 | $0.00000 | $0.00142 |
| Opus 5 | $0.00000 | $0.00071 |
| Sonnet 5 | $0.00000 | $0.00028 |
| Haiku 4.5 | $0.00000 | $0.00014 |
Grade A, and why
scan 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 6d 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
/scan — Scan text for safety issues
Scan the provided text for safety issues using all Sentinel AI scanners.
Usage
/scan
Behavior
Run all 7 Sentinel AI safety scanners against the provided text:
- Prompt injection detection
- PII detection and redaction
- Harmful content filtering
- Hallucination signal detection
- Toxicity detection
- Blocked terms checking
- Tool-use safety analysis
Report findings with risk levels (NONE, LOW, MEDIUM, HIGH, CRITICAL) and whether the content should be blocked.
If PII is detected, also show the redacted version of the text.
Input
$ARGUMENTS
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.
- 6d ago First seen · 27 lines · 0 tokens per session scan A f0e32175de42
scan is a command published in the GitHub repository MaxwellCalkin/sentinel-ai (23 stars, last pushed 6mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 142 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 2026-08-30.
Other commands, from other repositories
thumbgate-guard
Turn the last agent mistake into a hard prevention rule the agent cannot bypass. Use after a bad tool call, a wrong action, or a thumbs-down — "guard against this", "block this from happening again", "never do that again", "promote this to a rule".
thumbgate-protect
Show this repo's branch/release governance and grant a scoped, time-limited approval for an action that touches protected files. Use for "protect this branch", "is main protected", "approve this protected change", "branch governance", "let me edit a protected file".
thumbgate-blocked
Show what ThumbGate has actually blocked — gate enforcement stats and the full enforcement matrix. Use for "what has ThumbGate blocked", "show gate stats", "is enforcement working", "how many tokens did we save", "enforcement matrix".
thumbgate-doctor
Health-check the ThumbGate wiring for this project — hooks, MCP server, and agent-readiness — and report what's broken. Use for "is ThumbGate wired up", "thumbgate doctor", "check my guardrails are installed", "why aren't my gates firing", "agent readiness".
thumbgate-rules
List the active prevention rules and learned lessons guarding this project. Use to answer "what is ThumbGate protecting me from", "show my gates/rules", "what has the agent learned", "what's blocked here".
capture-feedback
Quick feedback capture with structured signals.