prp-create

A command that turns a feature request into a detailed implementation plan. The plan is based on examining the existing codebase and researching relevant information.

In plain words
What is it for?
Planning new features, improvements, refactors, and bug fixes in an existing project.
Why use it?
It helps developers understand where and how to make a change before writing code. It also records patterns, risks, checks, and commands the implementer will need.

Command

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 commands/bravew/trove/prp-create
Clone the repo
git clone --depth 1 https://github.com/bravew/trove
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,194 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 $0.00010 $0.01194
Opus 5 $0.00005 $0.00597
Sonnet 5 $0.00002 $0.00239
Haiku 4.5 $0.00001 $0.00119

Measured 2d ago against content hash 4aa2c12de1ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prp-create 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.

commands/prp-create.md · 201 lines

How it starts

The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create Feature PRP

Feature: $ARGUMENTS

Mission

Transform a feature request into a comprehensive implementation PRP (Pull Request Plan) through systematic codebase analysis, external research, and strategic planning.

Core Principle: We do NOT write code in this phase. Our goal is to create a battle-tested, context-rich implementation plan that enables one-pass implementation success.

Key Philosophy: Context is King. The PRP must contain ALL information needed for implementation — patterns, gotchas, documentation, validation commands — so the execution agent succeeds on the first attempt.

Planning Process

Phase 1: Feature Understanding

  • Extract the core problem being solved
  • Identify user value and business impact
  • Determine feature type: New Capability / Enhancement / Refactor / Bug Fix
  • Assess complexity: Low / Medium / High
  • Map affected systems and components

Phase 2: Codebase Intelligence Gathering

Use specialized agents and parallel analysis:

1. Project Structure Analysis

  • Check CLAUDE.md / project rules for conventions
  • Read config files (package.json, pyproject.toml, Package.swift, etc.)
  • Map directory structure, module organization, and routing patterns
  • Identify the project's validation commands (lint, type-check, test, build)

2. Pattern Recognition (use subagents when beneficial)

  • Search for similar implementations in the codebase
  • Identify coding conventions (naming, structure, error handling, testing)
  • Extract common patterns for the feature's domain
  • Document anti-patterns to avoid

3. Dependency Analysis

  • Catalog external libraries relevant to the feature
  • Understand how libraries are integrated
  • Note library versions and compatibility requirements

4. Testing Patterns

  • Identify the project's test framework and structure
  • Find similar test examples for reference
  • Note validation commands

5. Integration Points

  • Identify existing files that need updates
  • Determine new files that need creation and their locations
  • Map routing, state management, and API patterns if applicable

Read the full file on GitHub · 201 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 · 201 lines · 10 tokens per session scan A 4aa2c12de1ec

Subscribe to this mod's changes

prp-create is a command published in the GitHub repository bravew/trove (10 stars, last pushed 3d ago), licensed MIT. It adds 10 tokens to every session and 1,194 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.