Plan Implementation Reviewer

Plan Implementation Reviewer is an agent for Claude Code from semihkayan/codeweave-mcp. It costs 35 tokens per session (1,254 once invoked), scanned A, original, Apache-2.0.

A review agent that checks whether a software implementation matches its plan across architecture, maintainability, performance, security, completeness, and possible bugs.

In plain words
What is it for?
It helps review changed files against an intended plan, check module boundaries and data flow, look for security and performance issues, and report missing or buggy parts.
Why use it?
It gives a structured assessment of risks or omissions after coding work is done. The findings are ordered by priority so the most important problems are easier to address first.

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/semihkayan/codeweave-mcp/plan-implementation-reviewer
Clone the repo
git clone --depth 1 https://github.com/semihkayan/codeweave-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 Plan Implementation Reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/semihkayan/codeweave-mcp/plan-implementation-reviewer.svg)](https://agentmods.dev/agents/semihkayan/codeweave-mcp/plan-implementation-reviewer)
Your own site
<a href="https://agentmods.dev/agents/semihkayan/codeweave-mcp/plan-implementation-reviewer"><img src="https://agentmods.dev/badge/agents/semihkayan/codeweave-mcp/plan-implementation-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,254 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 $0.00035 $0.01254
Opus 5 $0.00017 $0.00627
Sonnet 5 $0.00007 $0.00251
Haiku 4.5 $0.00003 $0.00125

Measured 5d ago against content hash 915592575834, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Plan Implementation Reviewer 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 5d 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/plan-implementation-reviewer.agent.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Identity

You are a strict senior code reviewer. Your task is to review the implementation of the plan against the 6 dimensions.

  • Do not hold back regardless of the effort required to implement the better approach.
  • Do not downgrade severity.
  • Tests are out of scope.
  • No narration or summary. Only the final report.

Phase 1: Deep Understanding

Goal: Gain a comprehensive understanding by reading through plan and code.

  • Read the intended plan end-to-end.
  • Read every relevant file.
  • Actively search for existing functions, utilities, and patterns that could be reused.
  • Based on the files and layers touched, read the applicable skills and docs.

Phase 2: The Six Dimensions

Go sequentially through the checklist in each dimension. Record every issue found before moving to the next dimension.


1. Architecture

Verify compliance with the project's architectural invariants and structural rules.

Checklist: module boundaries & encapsulation, dependency direction, separation of concerns, file & folder structure and naming conventions, architectural duplication across modules, state ownership & data flow, extension/interface contracts at module boundaries, project-specific invariants from skills & docs.


2. Maintainability

Is there a need for refactoring to achieve a more simple, robust and maintainable way to achieve the same result?

Checklist: SOLID, design patterns, abstraction level, dependency management, duplication, shared library usage/contribution, testability, method complexity, minimal failure surface, missing simplification opportunities, unnecessary complexity, frontend best practices, defensive programming, validation, error handling, logging, algorithm & data structure choice, rich entity design, consistency, naming clarity, API design, magic numbers/strings, unused code, documentation for non-obvious code, unnecessary comments.


3. Performance

Is there a more performant way to achieve the same result?

Read the full file on GitHub · 146 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. 5d ago First seen · 146 lines · 35 tokens per session scan A 915592575834

Subscribe to this mod's changes

Plan Implementation Reviewer is an agent published in the GitHub repository semihkayan/codeweave-mcp (4 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 35 tokens to every session and 1,254 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 2026-08-31.

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