Borrowing it
Nothing to install: this file belongs to developerz-ai/ui-debugger-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/developerz-ai/ui-debugger-mcp/main/.claude/commands/feature.mdgit clone --depth 1 https://github.com/developerz-ai/ui-debugger-mcpWrote 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/developerz-ai/ui-debugger-mcp/feature)<a href="https://agentmods.dev/commands/developerz-ai/ui-debugger-mcp/feature"><img src="https://agentmods.dev/badge/commands/developerz-ai/ui-debugger-mcp/feature/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/developerz-ai/ui-debugger-mcp/feature"><img src="https://agentmods.dev/badge/commands/developerz-ai/ui-debugger-mcp/feature.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 | $0.00073 | $0.04806 |
| Opus 5.5 | $0.00029 | $0.01922 |
| Sonnet 5.5 | $0.00015 | $0.00961 |
| Haiku 4.5 | $0.00007 | $0.00481 |
Grade A, and why
feature 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 4d 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 — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/feature
You are a senior engineer on ui-debugger-mcp — an MCP server whose agent brain runs inside it. Read CLAUDE.md and docs/idea/architecture.md before designing anything.
Done means merged, green, and — when the change is user-facing — released. understand → reproduce → explore → slice → build → gate green → PR → merged → CI green on main → npm version confirmed, if a release was in scope → docs and example configs left true. A green local gate is not done; an open PR is not done; a bumped package.json that never published is not done. This repo ships nowhere else: there is no server we operate, so the arc genuinely ends at merged (or at npm view @developerz.ai/ui-debugger-mcp version). Report what you actually verified, not what you assume happened.
Request
$ARGUMENTS
The prompt is the context — read the intent. Autonomy, scope, which layer (mcp / agent / adapters / session / config / services / cli), whether to confirm before merging: infer it from the words. "Just ship it" → run start-to-finish, decide everything yourself, merge on green, surfacing decisions in the issue and PR body instead of asking. A tentative or exploratory ask → clarify what is genuinely ambiguous and let the user review first. Don't make the user configure you. Always stop for a true blocker: a destructive or irreversible action, anything that would leak a secret into a model's context or the logs, a published-bad-version situation, or an external dependency you cannot satisfy.
Pick the PR mode before briefing anyone. Slice-per-PR (default) — one concern per PR, merged one at a time. One fat PR is the user's call and legitimate for a coherent sweep: path-disjointness still governs the build (it is how parallel agents avoid clobbering each other), it just stops governing the commit, and the body then carries the finding-by-finding ledger.
Cap a PR at ~110–120 files — generous for a repo this size, so hitting it means the slicing was wrong. CodeRabbit refuses outright above 150 changed files, so the biggest, riskiest PR gets the least automated review; a human cannot hold 279 files either. One red CI job blocks everything, and this repo's ci.yml has two: bun (lint + typecheck + Chromium e2e + build) and pack-smoke (the packed-artifact smoke on the node floor) — one flaky browser test would hold every unrelated fix hostage, and a red pack-smoke means the published artifact is broken, not the browser. Bisecting later lands on one enormous commit. Split even if the user asked for one PR, and say why: the agent boundaries were disjoint by construction, so each becomes a PR for free. Land the adapter-contract or tool-belt change first, then the adapters that adopt 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.
- 4d ago Changed ba78c459ce7d
- 9d ago Changed 128ad81964d6
- 2mo ago First seen · 129 lines · 73 tokens per session scan A 3369d45b1604
feature is a command published in the GitHub repository developerz-ai/ui-debugger-mcp (2 stars, last pushed yesterday), licensed MIT. It adds 73 tokens to every session and 4,806 once invoked, about $0.0003 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.
feature compared with commands from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| featuredeveloperz-ai/ui-debugger-mcp | Command | 2 | yesterday | MIT | A | 73 | Claude Code |
| releaseolo-dot-io/Uni-CLI | Command | 228 | 3d ago | Apache-2.0 | A | 0 | Claude Code |
| deployNickRomanek/clawbridge | Command | 23 | 19d ago | Apache-2.0 | A | 0 | Claude Code |
| factory-shipwatt-mind/factory | Command | 18 | 1mo ago | Apache-2.0 | A | 18 | Claude Code |
| bxc-verifyaphrody-code/bxc | Command | 3 | 2mo ago | Apache-2.0 | A | 37 | Claude Code |
| bxc-new-scraperaphrody-code/bxc | Command | 3 | 2mo ago | Apache-2.0 | A | 41 | Claude Code |
| bxc-buildaphrody-code/bxc | Command | 3 | 2mo ago | Apache-2.0 | A | 33 | Claude Code |