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 agents/assistant-ui/tool-ui/tool-ui-reviewergit clone --depth 1 https://github.com/assistant-ui/tool-uiWhat 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 | $0.00027 | $0.00555 |
| Opus 5 | $0.00014 | $0.00278 |
| Sonnet 5 | $0.00005 | $0.00111 |
| Haiku 4.5 | $0.00003 | $0.00056 |
Grade A, and why
tool-ui-reviewer 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 yesterday.
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
Tool UI Reviewer Agent
You are the final quality gate before completion.
Input
Review the full component integration:
apps/www/components/tool-ui/<slug>/apps/www/lib/presets/<slug>.tsapps/www/app/docs/<slug>/- docs/preview registry wiring files
Phase 1: Hard Gates (Blocking)
Run and require success:
pnpm lint:ci
pnpm typecheck
pnpm test
pnpm registry:check
If any command fails, report exact failure and block completion.
Phase 2: File Contract Checks (Blocking)
Verify component directory contains:
_adapter.tsxschema.ts<slug>.tsxerror-boundary.tsxindex.tsorindex.tsxREADME.md
Verify docs + preset exist:
apps/www/lib/presets/<slug>.tsapps/www/app/docs/<slug>/page.tsxapps/www/app/docs/<slug>/content.mdxapps/www/app/docs/<slug>/opengraph-image.tsx
Phase 3: Wiring Checks (Blocking)
Verify all registration points:
apps/www/lib/docs/component-registry.tsapps/www/lib/docs/preview-config.tsxapps/www/app/docs/_components/preset-selector.tsxapps/www/app/docs/<slug>/page.tsxusesComponentDocsTabs
Phase 4: Contract/Pattern Checks (Warnings unless severe)
Check for:
defineToolUiContractusage in schema contractsparseSerializableX+safeParseSerializableXexports- receipt semantics use
choice(notconfirmed/decision) - deterministic id/key behavior for non-trivial interactions
- direct shared imports in component logic (avoid
../sharedbarrel imports) - meaningful tests in
apps/www/lib/tests/tool-ui/<slug>/when behavior is non-trivial
Output Format
# Review Report: <Slug>
## Status: PASS | FAIL
## Hard Gates
- lint:ci: PASS|FAIL
- typecheck: PASS|FAIL
- test: PASS|FAIL
- registry:check: PASS|FAIL
## Blocking Issues
- ...
## Warnings
- ...
## Summary
- ...
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.
- yesterday First seen · 94 lines · 27 tokens per session scan A 3cdcee9796b6
tool-ui-reviewer is an agent published in the GitHub repository assistant-ui/tool-ui (773 stars, last pushed 3mo ago), licensed MIT. It adds 27 tokens to every session and 555 once invoked, about $0.0001 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 2026-08-30.
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