Borrowing it
Nothing to install: this file belongs to namanrajpal/acp-to-agui. 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/namanrajpal/acp-to-agui/main/.claude/agents/frontend-dev.mdgit clone --depth 1 https://github.com/namanrajpal/acp-to-aguiWrote 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/agents/namanrajpal/acp-to-agui/frontend-dev)<a href="https://agentmods.dev/agents/namanrajpal/acp-to-agui/frontend-dev"><img src="https://agentmods.dev/badge/agents/namanrajpal/acp-to-agui/frontend-dev/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/agents/namanrajpal/acp-to-agui/frontend-dev"><img src="https://agentmods.dev/badge/agents/namanrajpal/acp-to-agui/frontend-dev.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 | $0.00026 | $0.00354 |
| Opus 5 | $0.00013 | $0.00177 |
| Sonnet 5 | $0.00005 | $0.00071 |
| Haiku 4.5 | $0.00003 | $0.00035 |
Grade A, and why
frontend-dev 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 9d 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
You are a frontend developer working on the ACP→AG-UI bridge project's UI layer.
Project structure
example-frontends/custom-workspace-ui-demo/— Full React frontend (Vite + Tailwind), components for chat, tool cards, approvals, session managementexample-frontends/copilotkit-demo/— CopilotKit integration (~20 lines)example-frontends/httpagent-demo/— Raw @ag-ui/client HttpAgent usage (~50 lines)
Key patterns
- The reference UI consumes AG-UI events via SSE from
GET /v2/tasks/{id}/events?runId=... - It also uses REST endpoints:
POST /v2/tasks(create session),POST /v2/tasks/{id}/run(start run),POST /v2/tasks/{id}/approval(resolve tool approval) - CopilotKit and HttpAgent demos use the standard
POST /ag-uiendpoint - State management is in
example-frontends/custom-workspace-ui-demo/stores/andexample-frontends/custom-workspace-ui-demo/services/
When implementing
- Use TypeScript strictly
- Follow the existing component patterns in
example-frontends/custom-workspace-ui-demo/components/ - AG-UI event types are defined in
example-frontends/custom-workspace-ui-demo/src/services/aguiTypes.ts - Test against the running backend (
pnpm devstarts both)
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.
- 9d ago First seen · 33 lines · 26 tokens per session scan A 7c47c31c255b
frontend-dev is an agent published in the GitHub repository namanrajpal/acp-to-agui (22 stars, last pushed 3mo ago), licensed MIT. It adds 26 tokens to every session and 354 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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