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 rules/coddy-project/coddy-agent/ui-verificationgit clone --depth 1 https://github.com/coddy-project/coddy-agentWhat 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 | $0.00000 | $0.00257 |
| Opus 5 | $0.00000 | $0.00129 |
| Sonnet 5 | $0.00000 | $0.00051 |
| Haiku 4.5 | $0.00000 | $0.00026 |
Grade A, and why
ui-verification 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 2d 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
UI verification (Playwright MCP)
Before you tell the user that a UI change is complete or merge-ready:
- Start
npx viteinexternal/uion a free port (for example127.0.0.1:5201). - Use Playwright MCP (or the repo browser tools) to open
/layout-scroll-check.htmland/with at least two viewports: narrow (for example 390px) and wide (for example 1280px). - Run
browser_evaluateto comparegetBoundingClientRect()edges for.chat-header,.messages-innerfirst child, and.composer-card(left and right should match within about 1px after shared column padding). - If anything is off, fix CSS and re-check before reporting done.
This is required for changes to external/ui/src/styles.css, ChatScreen, Composer, or nav layout.
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.
- 2d ago First seen · 17 lines · 0 tokens per session scan A f70ddcdbbde8
ui-verification is a cursor rule published in the GitHub repository coddy-project/coddy-agent (127 stars, last pushed 4d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 257 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.
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