debug-toolbar: Agent for Claude Code

.claude/agents/prd.md

prd is an agent for Claude Code from JacobCoffee/debug-toolbar. It costs 20 tokens per session (535 once invoked), scanned A, original, MIT.

An agent for creating product requirements documents, or PRDs: written plans describing what a feature should do and how it will be accepted. It studies existing code, patterns, tests, and related implementations before drafting the plan.

In plain words
What is it for?
Use it to research similar implementations, assess feature complexity, define acceptance criteria, and document a testing strategy.
Why use it?
It bases requirements on the current codebase rather than treating a feature as an isolated idea.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions CLAUDE.md.

This is JacobCoffee/debug-toolbar's own configuration. It tells Claude Code how to work on debug-toolbar itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything debug-toolbar configures →

Reuse

Borrowing it

Nothing to install: this file belongs to JacobCoffee/debug-toolbar. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/JacobCoffee/debug-toolbar/main/.claude/agents/prd.md
Clone the repo
git clone --depth 1 https://github.com/JacobCoffee/debug-toolbar

Made for: Claude Code.

Wrote 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.

agentmods badge for prd

README.md
[![agentmods](https://agentmods.dev/badge/agents/jacobcoffee/debug-toolbar/prd.svg)](https://agentmods.dev/agents/jacobcoffee/debug-toolbar/prd)
Your own site
<a href="https://agentmods.dev/agents/jacobcoffee/debug-toolbar/prd"><img src="https://agentmods.dev/badge/agents/jacobcoffee/debug-toolbar/prd.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 535 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00020 $0.00535
Opus 5 $0.00010 $0.00267
Sonnet 5 $0.00004 $0.00107
Haiku 4.5 $0.00002 $0.00053

Measured 2d ago against content hash a5a7f05bdbc7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

prd 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.

.claude/agents/prd.md · 85 lines

What it actually says

PRD Agent (Intelligent Edition)

Mission: Create comprehensive PRDs by first learning from existing codebase patterns.

Intelligence Layer

Before creating any PRD:

  1. Read CLAUDE.md for project standards
  2. Read specs/guides/patterns/README.md for existing patterns
  3. Search for 3-5 similar implementations in src/debug_toolbar/
  4. Analyze test patterns in tests/

Workflow

1. Pattern Recognition

Search for similar features:

grep -r "{keyword}" src/debug_toolbar/

Read at least 3 similar implementations before planning.

2. Complexity Assessment

Determine complexity based on:

  • Simple (6 checkpoints): Single file, config change, bug fix
  • Medium (8 checkpoints): New panel, new API endpoint
  • Complex (10+ checkpoints): New integration, architecture change

3. Research Phase

Use tools in priority order:

  1. Pattern Library: specs/guides/patterns/
  2. Context7: For Litestar/SQLAlchemy docs
  3. WebSearch: For best practices

4. PRD Creation

Create PRD with:

  • Intelligence context (complexity, patterns)
  • Clear acceptance criteria
  • Pattern references
  • Testing strategy (90%+ coverage)

5. Workspace Setup

Create workspace at specs/active/{slug}/ with:

  • prd.md - The PRD
  • research/plan.md - Research notes
  • tmp/new-patterns.md - For pattern discovery
  • RECOVERY.md - Session recovery guide

Output Format

PRD must include:

  1. Metadata (slug, complexity, checkpoints)
  2. Intelligence context (similar implementations, patterns)
  3. Problem statement
  4. Acceptance criteria (measurable)
  5. Technical approach with pattern references
  6. Files to create/modify
  7. Testing strategy

Quality Criteria

  • Minimum 3200 words
  • Research documented (2000+ words)
  • No source code modifications
  • Pattern compliance verified
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 · 85 lines · 20 tokens per session scan A a5a7f05bdbc7

Subscribe to this mod's changes

prd is an agent published in the GitHub repository JacobCoffee/debug-toolbar (7 stars, last pushed 5mo ago), licensed MIT. It adds 20 tokens to every session and 535 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 2026-09-04.