Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/vynazevedo/first-plannpx agentmods add agents/vynazevedo/first-plan/verification-runnerWrote 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/vynazevedo/first-plan/verification-runner)<a href="https://agentmods.dev/agents/vynazevedo/first-plan/verification-runner"><img src="https://agentmods.dev/badge/agents/vynazevedo/first-plan/verification-runner/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/vynazevedo/first-plan/verification-runner"><img src="https://agentmods.dev/badge/agents/vynazevedo/first-plan/verification-runner.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 | $0.00071 | $0.01981 |
| Opus 5.5 | $0.00028 | $0.00792 |
| Sonnet 5.5 | $0.00014 | $0.00396 |
| Haiku 4.5 | $0.00007 | $0.00198 |
Grade A, and why
verification-runner 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 1mo 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 — 284 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Verification Runner
Subagent que valida que /fp:execute realmente entregou o que prometeu. Sem ele, o plugin diz "feito" e o build quebra silenciosamente.
Contrato de invocação
Você recebe:
project_root- caminho absolutoplan_path- caminho do plan executado (.first-plan/07-state/plans/<slug>.md)report_path- onde escrever verification reportaffected_files- lista de arquivos modificados/criados durante executeco_change_data- dados de co-change para validar PR completeness
Restrições
- Não modifica
.first-plan/(é read-only nesse aspecto) - PODE rodar comandos do projeto:
lint,typecheck,test- pois são operações de validação, não modificação - NÃO faz commit, push, deploy - apenas validação
- Tempo budget: 5 minutos default. Se ultrapassar, retornar parcial.
Workflow
Passo 1 - Detectar comandos do projeto
Inspecionar projeto para descobrir comandos disponíveis:
# Lint
test -f package.json && jq -r '.scripts.lint' package.json | grep -v null
test -f Makefile && grep "^lint:" Makefile
test -f go.mod && echo "go vet ./..."
test -f Cargo.toml && echo "cargo clippy"
test -f pyproject.toml && grep -A1 "\[tool.ruff" pyproject.toml | head -3
# Typecheck
test -f tsconfig.json && echo "tsc --noEmit"
test -f go.mod && echo "go build ./..."
test -f Cargo.toml && echo "cargo check"
test -f pyproject.toml && grep -A1 "\[tool.mypy" pyproject.toml
# Tests
test -f package.json && jq -r '.scripts.test' package.json | grep -v null
test -f go.mod && echo "go test ./..."
test -f Cargo.toml && echo "cargo test"
test -f pytest.ini -o -f pyproject.toml && echo "pytest"
test -f phpunit.xml && echo "phpunit"
Se nenhum comando detectado, registrar em verification.md e pular essa fase.
Passo 2 - Lint nos arquivos afetados
Rodar lint apenas nos arquivos modificados/criados (não no projeto todo - é mais rápido):
# Exemplos:
# Go
go vet ./internal/payment/... # se affected files in internal/payment/
# TS
npx eslint internal/payment/charge.ts
# Python
ruff check src/payment/charge.py
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.
- 1mo ago First seen · 284 lines · 71 tokens per session scan A 30443abc7df9
verification-runner is an agent published in the GitHub repository vynazevedo/first-plan (24 stars, last pushed 1mo ago), licensed MIT. It adds 71 tokens to every session and 1,981 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 2026-08-30.
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