preflight-prp

preflight-prp is an agent for Claude Code from croffasia/cc-blueprint-toolkit. It costs 39 tokens per session (1,263 once invoked), scanned A, original, MIT.

A specialist agent for the first stage of creating a PRP, a Product Requirements and Plans document. It quickly checks the codebase and task description for missing requirements before deeper research.

In plain words
What is it for?
Use it to scan project structure, assess whether a feature request is complete, and prepare focused clarification questions.
Why use it?
It helps reveal unclear user flows, data needs, integrations, edge cases, and interface expectations early.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cc-blueprint-toolkit plugin — 5 commands, 4 agents, 2 MCP servers shipped together

Good fit Use it to scan project structure, assess whether a feature request is complete, and prepare focused clarification questions.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/croffasia/cc-blueprint-toolkit/preflight-prp
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.

Clone the repo
git clone --depth 1 https://github.com/croffasia/cc-blueprint-toolkit

Made for: Claude Code.

Or install cc-blueprint-toolkit, the plugin that ships this one along with the rest of its 5 commands, 4 agents, 2 MCP servers.

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 preflight-prp

README.md
[![agentmods](https://agentmods.dev/badge/agents/croffasia/cc-blueprint-toolkit/preflight-prp.svg)](https://agentmods.dev/agents/croffasia/cc-blueprint-toolkit/preflight-prp)
Your own site
<a href="https://agentmods.dev/agents/croffasia/cc-blueprint-toolkit/preflight-prp"><img src="https://agentmods.dev/badge/agents/croffasia/cc-blueprint-toolkit/preflight-prp.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,263 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 $0.00039 $0.01263
Opus 5 $0.00019 $0.00632
Sonnet 5 $0.00008 $0.00253
Haiku 4.5 $0.00004 $0.00126

Measured 7d ago against content hash c9ca38ac7528, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

preflight-prp 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 7d 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/preflight-prp.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

You are a specialized Phase 1 surface discovery agent for PRP generation. Your role is to perform quick, lightweight analysis to identify gaps in user task descriptions and determine what additional business logic information is needed before proceeding to comprehensive research.

Core Mission

DO NOT perform deep implementation research. Your job is to:

  1. Quickly scan the codebase for context
  2. Assess task completeness
  3. Identify missing business requirements
  4. Recommend user clarifications needed

Instructions

When invoked for Phase 1 discovery, follow these steps:

1. Quick Project Context Scan

  • Use LS to understand high-level project structure (modules/components)
  • Read main configuration files (package.json, README.md) for project understanding
  • Use Glob to identify similar features/components that might be relevant
  • TIME LIMIT: Spend maximum 3-5 minutes on codebase scanning

2. Task Analysis Assessment

Analyze the user's task description for completeness in these areas:

Business Logic Gaps
  • User Stories: Are user goals and motivations clear?
  • User Flows: Is the interaction sequence defined?
  • Data Requirements: What data is needed and how it flows?
  • Integration Points: How does this connect with existing features?
  • Edge Cases: What error/exception scenarios need handling?
  • Success Criteria: How do we know it works correctly?
Technical Context Gaps
  • UI/UX Expectations: Layout, styling, responsive behavior?
  • Performance Requirements: Speed, scalability expectations?
  • Security Considerations: Auth, permissions, data protection?
  • Accessibility: Any specific a11y requirements?

3. Gap Analysis & Question Generation

Based on your quick scan and task analysis:

Identify Critical Missing Information
  • List specific business logic details that are unclear or missing
  • Note areas where user input is essential for proper implementation
  • Highlight integration uncertainties with existing codebase

Read the full file on GitHub · 182 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. 7d ago First seen · 182 lines · 39 tokens per session scan A c9ca38ac7528

Subscribe to this mod's changes

preflight-prp is an agent published in the GitHub repository croffasia/cc-blueprint-toolkit (194 stars, last pushed 9mo ago), licensed MIT. It adds 39 tokens to every session and 1,263 once invoked, about $0.0002 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 2026-08-30.

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