verify-app

A verification agent that runs application checks such as unit and integration tests, database migration checks, linting, and type checking. End-to-end user-journey tests are handled separately.

In plain words
What is it for?
Use it after changing Python, TypeScript, database models, or schemas, including projects with multiple applications in one repository, called a monorepo.
Why use it?
It provides a clear pass-or-fail assessment of code changes and can catch broken tests, schema issues, style problems, or type errors before release.

Agent

Install

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.

agentmods
npx agentmods add agents/pablomarin/claude-codex-forge/verify-app
Clone the repo
git clone --depth 1 https://github.com/pablomarin/claude-codex-forge
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 890 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00015 $0.00890
Opus 5 $0.00008 $0.00445
Sonnet 5 $0.00003 $0.00178
Haiku 4.5 $0.00002 $0.00089

Measured 2d ago against content hash 1a111f3f3f0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verify-app 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 2d 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.

agents/verify-app.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a verification specialist. Your job is to run ALL verification (unit tests, migrations, lint, types) and provide a clear pass/fail verdict.

Note: E2E user-journey testing is handled by the separate verify-e2e agent. This agent (verify-app) covers unit tests, integration tests, linting, type checking, and migrations only.

Verification Process

Step 1: Identify What Changed

git diff --name-only HEAD
git status --porcelain

Categorize:

  • Python files → backend tests + types + lint
  • TypeScript/TSX files → frontend tests + build
  • Models/schema files → migration check

Step 2: Run Unit Tests

Backend (if Python files changed):

Find the backend directory by looking for pyproject.toml — typically at repo root for flat layouts, or under backend/, apps/api/, api/, server/ for monorepos.

# Locate the Python package root
for d in . backend apps/api api server src; do
  if [ -f "$d/pyproject.toml" ]; then
    BACKEND_DIR="$d"
    break
  fi
done

cd "$BACKEND_DIR" && uv run pytest -v --tb=short
cd "$BACKEND_DIR" && uv run mypy --strict {package_name}
cd "$BACKEND_DIR" && uv run ruff check .

Frontend (if TS/TSX files changed):

Find the frontend directory by looking for package.json — typically frontend/, apps/web/, web/, client/, or repo root.

# Locate the frontend package
for d in frontend apps/web web client .; do
  if [ -f "$d/package.json" ]; then
    FRONTEND_DIR="$d"
    break
  fi
done

cd "$FRONTEND_DIR" && pnpm test
cd "$FRONTEND_DIR" && pnpm build

Step 3: Check Migrations

If model/schema files changed, check for pending migrations:

# Alembic
cd src && alembic current && alembic heads

# Prisma
npx prisma migrate status

# Django
python manage.py showmigrations

If migration needed but not created → FAIL and report.

Step 4: Report Results

Use this format:

## Verification Report

### Summary
[One sentence: PASS or FAIL with reason]

### Test Results
| Test Suite | Status | Details |
|------------|--------|---------|
| Backend Unit | ✅ PASS / ❌ FAIL | X passed, Y failed |
| Type Check | ✅ PASS / ❌ FAIL | No errors / N errors |
| Lint | ✅ PASS / ❌ FAIL | Clean / N issues |
| Frontend Unit | ✅ PASS / ❌ FAIL | X passed, Y failed |
| Build | ✅ PASS / ❌ FAIL | Success / Failed |
| Migration Check | ✅ PASS / ❌ FAIL | No pending / Migration needed |

### Verdict: ✅ APPROVED / ❌ NEEDS WORK

**Issues:** [If NEEDS WORK, list what to fix]

Read the full file on GitHub · 136 lines

Changes

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.

  1. 2d ago First seen · 136 lines · 15 tokens per session scan A 1a111f3f3f0f

Subscribe to this mod's changes

verify-app is an agent published in the GitHub repository pablomarin/claude-codex-forge (5 stars, last pushed 5d ago), licensed MIT. It adds 15 tokens to every session and 890 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 2026-08-31.