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agent-builder/agent_builder/skills/agent-quality-review/SKILL.md
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Sanitize generated pricing fields
2026-06-02 14:19:13 -03:00

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---
name: agent-quality-review
description: Review a generated a2a-pack agent before sandbox testing or deploy. Use to catch broken cards, missing schemas, fake tools, unwired DeepAgents skills, missing runtime mirrors, unsafe IO, and stale live Agent Card schemas.
---
# Agent Quality Review
Before `test_agent_in_sandbox` and before deploy, review the generated project
as source code, not just as text.
## Required Files
Every generated project needs:
- `agent.py`
- `a2a.yaml`
- `requirements.txt`
- Optional `skills/<skill-name>/SKILL.md` bundles for nontrivial DeepAgents
behavior
- Optional `frontend/` source when the agent ships a packed app
Run `list_agent_files` and read the files that matter. If the project was
deployed before, use `sync_agent_workspace_from_repo` before editing when the
builder needs to continue from the current managed repo source.
## Agent.py Review
Check these items:
- Public `@skill` methods are async and have `RunContext[...]` plus typed JSON
arguments.
- The public schema is small and stable. No unbounded command strings, hidden
prompt fragments, or provider credentials as public inputs.
- The implementation reads `ctx.llm` for both `CALLER_PROVIDED` and
`PLATFORM` LLM provisioning. `PLATFORM_OR_CALLER_PROVIDED` is acceptable
only for trusted platform/meta agents and must also read `ctx.llm`.
- Hosted generated/user agents should default to
`llm_provisioning = LLMProvisioning.PLATFORM` and
`Pricing(..., caller_pays_llm=False, ...)`. Use
`LLMProvisioning.CALLER_PROVIDED` only when the user explicitly wants BYOK or
caller-paid inference. In both modes, the code must use `ctx.llm` and never
read LiteLLM/provider keys directly.
- `Pricing` contains only `price_per_call_usd`, `caller_pays_llm`, and `notes`.
Reject `runtime.pricing.compute`, `runtime.pricing.total_usd`, `compute=`, or
`total_usd=` in `agent.py`; those are derived platform fields.
- Any code path that builds `ChatOpenAI` checks `ctx.llm.api_key` first or
returns a clear setup/config result before the model constructor runs.
- Any use of DeepAgents file tools passes `backend=ctx.workspace_backend()`.
- Any project skills are seeded into the backend and passed with
`skills=skill_sources or None`.
- Custom subagents that need project skills include their own `skills` field.
- Deterministic tools do exact work; no fake canned-response tools.
- File-producing skills call `ctx.write_artifact` and `ctx.emit_artifact`.
- Commands that create downloadable outputs run through `ctx.workspace_shell`
or `ctx.workspace_python`; `/workspace` writes persist directly and other
changed sandbox rootfs files are mirrored under `outputs/rootfs-captures/...`.
Plain subprocesses in the agent container are not durable workspace writes.
- External calls, secrets, workspace access, pricing, and resources are
declared on the class.
## A2A YAML Review
Mirror deployment-only details in `a2a.yaml` because the platform reads it
before importing user code:
```yaml
name: research-agent
version: 0.1.0
entrypoint: agent:ResearchAgent
expose:
public: true
runtime:
apt_packages: [ffmpeg]
resources:
cpu: "2"
memory: 2Gi
max_runtime_seconds: 900
```
Use `runtime.apt_packages` only for Debian system binaries. Python packages
belong in `requirements.txt`.
If a packed frontend is declared, verify the manifest and files line up:
```yaml
frontend:
path: frontend
build: npm run build
dist: dist
mount: /app
auth: inherit
```
For React/Vite frontends, expect `frontend/package.json`,
`frontend/vite.config.js`, `frontend/src/App.jsx`, and `frontend/src/a2a.js`.
For static frontends, expect `frontend/dist/index.html`. The browser code must
not contain platform secrets, provider keys, LiteLLM keys, hard-coded deployment
URLs, or private stack details. It should load `/app/config.json`, use
`/app/a2a-client.js` or generated config endpoints, and call only the public
`@skill` schemas.
## Sandbox And Live Card
Always run `test_agent_in_sandbox(name)` before deploy. Treat nonzero exit as
source failure, then read stderr, edit, and rerun.
When a frontend is present, inspect the sandbox output's `a2a frontend info`.
For React apps, make sure `frontend/package.json` defines a build script and
the deployed build process can produce `frontend/dist/index.html`.
After `cp_deploy_tarball`, compare `live_skills[].input_schema` with the
actual public `@skill` signatures. If a live schema is missing an argument or
shows an old shape, refresh or redeploy until the live Agent Card matches the
source.
## Minimal Good Result
For most generated agents, a good result is one public A2A `@skill`, one
workspace-backed DeepAgent, one or two internal DeepAgents skills, and a few
small deterministic tools. Resist broad endpoint sets unless the user asked
for a multi-operation agent.