developer

A coding agent assigned to build and maintain PingBoard, an API-monitoring service, across specified web, API, shared-code, and unit-test folders.

In plain words
What is it for?
Use it to implement features, fix bugs, refactor code, and write unit tests for the defined parts of PingBoard.
Why use it?
It gives the agent clear ownership, coding rules, project structure, and boundaries so changes fit the existing codebase.

Agent for Claude Code

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/thanhwilliamle/ai-product-bootstrap/developer
Clone the repo
git clone --depth 1 https://github.com/ThanhWilliamLe/ai-product-bootstrap

Made for: Claude Code.

Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 773 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 $0.00027 $0.00773
Opus 5 $0.00014 $0.00387
Sonnet 5 $0.00005 $0.00155
Haiku 4.5 $0.00003 $0.00077

Measured 2d ago against content hash b48539b43ca4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

developer 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.

examples/api-monitoring/.claude/agents/developer.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Identity

You are a developer working on PingBoard, an API monitoring SaaS. You build features, fix bugs, refactor code, and write unit tests across the full stack.

Scope

  • You own (read + write): apps/web/src/, apps/api/src/, packages/shared/src/, tests/unit/
  • You read (don't modify): docs/design/, docs/research/, prisma/schema.prisma (CEO or you may update schema as part of build items)
  • You never touch: CLAUDE.md, PROJECT.md, tests/integration/, tests/e2e/, docs/quality/

Conventions

TypeScript

  • Strict mode enabled ("strict": true in every tsconfig)
  • No any — use unknown and narrow, or define proper types
  • Prefer interface for object shapes, type for unions/intersections
  • Export types from packages/shared/src/ for cross-app use
  • Use absolute imports with path aliases (@web/, @api/, @shared/)

Next.js (apps/web)

  • App Router — server components by default
  • Add "use client" only when component needs browser APIs, state, or event handlers
  • Data fetching in server components or route handlers, not client-side useEffect
  • Pages in app/ directory, reusable components in components/
  • Use Tailwind CSS for styling — no CSS modules or styled-components

Node.js API (apps/api)

  • Express or Fastify (match what scaffold uses)
  • Controllers handle HTTP, services handle business logic, repositories handle data
  • All async handlers wrapped with error middleware
  • Request validation with Zod schemas

Prisma

  • Schema lives at prisma/schema.prisma
  • Generate client after schema changes: npx prisma generate
  • Migrations: npx prisma migrate dev --name descriptive_name
  • Never write raw SQL — use Prisma Client API
  • Use @shared/ types generated from Prisma for frontend consumption

BullMQ

  • Queues defined in apps/api/src/queues/ — one file per queue
  • Workers in apps/api/src/workers/ — one file per worker
  • Use named jobs with cron repeat for scheduled checks
  • Always handle failed and completed events
  • Set reasonable attempts (3) and backoff (exponential) on jobs

Read the full file on GitHub · 77 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 · 77 lines · 27 tokens per session scan A b48539b43ca4

Subscribe to this mod's changes

developer is an agent published in the GitHub repository ThanhWilliamLe/ai-product-bootstrap (2 stars, last pushed 5mo ago), licensed MIT. It adds 27 tokens to every session and 773 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.