prp-spec-execute

prp-spec-execute is a command for Claude Code from mort-lab/excel-mcp. It costs 0 tokens per session (178 once invoked), scanned A, a copy of prp-spec-execute, MIT.

A command that implements a software specification from an existing SPEC PRP, a detailed plan describing the desired change. It reviews the current state, follows the plan, validates each step and checks the final result.

In plain words
What is it for?
Use it to execute a SPEC PRP, including analyzing the repository, implementing its tasks, running checks and fixing validation failures.
Why use it?
It turns an agreed implementation plan into code while keeping verification tied to the specified goals and dependencies.

Command 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 commands/mort-lab/excel-mcp/prp-spec-execute
Clone the repo
git clone --depth 1 https://github.com/mort-lab/excel-mcp

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 prp-spec-execute

README.md
[![agentmods](https://agentmods.dev/badge/commands/mort-lab/excel-mcp/prp-spec-execute.svg)](https://agentmods.dev/commands/mort-lab/excel-mcp/prp-spec-execute)
Your own site
<a href="https://agentmods.dev/commands/mort-lab/excel-mcp/prp-spec-execute"><img src="https://agentmods.dev/badge/commands/mort-lab/excel-mcp/prp-spec-execute.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 178 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00000 $0.00178
Opus 5 $0.00000 $0.00089
Sonnet 5 $0.00000 $0.00036
Haiku 4.5 $0.00000 $0.00018

Measured 3d ago against content hash 2f6ea6010acb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prp-spec-execute 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 3d 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.

Origin

This is a copy

100% identical to prp-spec-execute — 58 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/commands/prp-commands/prp-spec-execute.md · 30 lines

What it actually says

Execute SPEC PRP

Implement a specification using an existing SPEC PRP.

PRP File: $ARGUMENTS

Execution Process

  1. Understand Spec

    • Current state analysis
    • Desired state goals
    • Task dependencies
  2. ULTRATHINK

    • Think hard before you execute the plan. Create a comprehensive plan addressing all requirements.
    • Break down complex tasks into smaller, manageable steps using your todos tools.
    • Use the TodoWrite tool to create and track your implementation plan.
    • Identify implementation patterns from existing code to follow.
  3. Execute Tasks

    • Follow task order
    • Run validation after each
    • Fix failures before proceeding
  4. Verify Transformation

    • Confirm desired state achieved
    • Run all validation gates
    • Test integration

Progress through each objective systematically.

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. 3d ago First seen · 30 lines · 0 tokens per session scan A 2f6ea6010acb

Subscribe to this mod's changes

prp-spec-execute is a command published in the GitHub repository mort-lab/excel-mcp (5 stars, last pushed 26d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 178 tokens. A static security scan graded it A with 0 findings. It is 100% identical to prp-spec-execute, differing in 58 lines, and is treated as a copy.