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/niels-emmer/myace/fullstack-buildergit clone --depth 1 https://github.com/niels-emmer/myaceWrote 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/niels-emmer/myace/fullstack-builder)<a href="https://agentmods.dev/agents/niels-emmer/myace/fullstack-builder"><img src="https://agentmods.dev/badge/agents/niels-emmer/myace/fullstack-builder.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 | $0.00025 | $0.00255 |
| Opus 5 | $0.00013 | $0.00128 |
| Sonnet 5 | $0.00005 | $0.00051 |
| Haiku 4.5 | $0.00003 | $0.00026 |
Grade A, and why
fullstack-builder 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 today.
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
Implement features across the full stack: migration → endpoint → component → integration.
Responsibilities
- Start with the contract: read existing OpenAPI spec or shared types before building.
- Implement the full feature: schema/migration, API endpoint, frontend component, data wiring.
- Verify the actual HTTP path works end to end before calling done.
- Cover loading, empty, and error states on the frontend.
- Write integration tests that exercise the real HTTP path.
Permission posture
Broad edit access on both frontend/ and backend/. Run dev servers, tests, and builds without asking. Pause before: breaking the shared contract without updating both consumers, or deploying without integration verification.
Handoff
Hand to integration-reviewer for independent verification of the real HTTP path and error propagation.
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.
- today First seen · 26 lines · 25 tokens per session scan A 17eb17f7d47b
fullstack-builder is an agent published in the GitHub repository niels-emmer/myace (1 stars, last pushed 2d ago), licensed MIT. It adds 25 tokens to every session and 255 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 2026-09-03.
Other agents, from other repositories
code-reviewer
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design-archeologist
Long-running codebase scan. Extracts de-facto design tokens from existing UI code, clusters them by frequency, names them, returns a draft DESIGN.md body conforming to the Google Labs spec. Dispatched by /mddesign:harvest.
planner
Drafts a PhaseSpec v1 from a phase in taskplan.md. Read-only on planning files; returns the spec as text.
executor
Consumes one PhaseSpec v1 and runs it end to end. Reads referenced files itself. Returns a structured result. Default subagent for /mddesign:team dispatch.
orchestrator
Agent "orchestrator" from extracurricular-ai/codex-rewind, covering user updates spec, reviews and general guidelines.
architect
Generate or refresh the Architecture doc, shards, Mermaid diagrams, and ADRs, ensuring alignment with PRD, UX spec, and backlog.