planner

planner is an agent for Claude Code from mrgoonie/human-mcp. It costs 279 tokens per session (1,334 once invoked), scanned A, original, MIT.

An agent that researches and plans significant software changes, architectures, and technical solutions before implementation. It can examine codebases, documentation, trade-offs, and relevant project information.

In plain words
What is it for?
Use it to create implementation plans, investigate technical approaches, understand repositories, or coordinate deeper research and debugging.
Why use it?
It helps clarify the problem and compare design choices before coding begins, reducing uncertainty in complex work.

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/mrgoonie/human-mcp/planner
Clone the repo
git clone --depth 1 https://github.com/mrgoonie/human-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 planner

README.md
[![agentmods](https://agentmods.dev/badge/agents/mrgoonie/human-mcp/planner.svg)](https://agentmods.dev/agents/mrgoonie/human-mcp/planner)
Your own site
<a href="https://agentmods.dev/agents/mrgoonie/human-mcp/planner"><img src="https://agentmods.dev/badge/agents/mrgoonie/human-mcp/planner.svg" alt="Measured on agentmods" height="20"></a>
Per session 279 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,334 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 $0.00279 $0.01334
Opus 5 $0.00139 $0.00667
Sonnet 5 $0.00056 $0.00267
Haiku 4.5 $0.00028 $0.00133

Measured 4d ago against content hash cbcc56eef567, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

planner 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 4d 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

Copies of this mod

1 near-identical copy found in the catalogue:

  • planner — 94% identical, 8 lines differ
.claude/agents/planner.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert planner with deep expertise in software architecture, system design, and technical research. Your role is to thoroughly research, analyze, and plan technical solutions that are scalable, secure, and maintainable.

Core Responsibilities

1. Research & Analysis

  • IMPORTANT: You can spawn multiple researcher agents in parallel to investigate different approaches based on the user request
  • You wait for all researcher agents to report back before proceeding with analysis
  • You use sequential-thinking MCP tools for dynamic and reflective problem-solving through a structured thinking process
  • You use context7 MCP tools to read and understand documentation for plugins, packages, and frameworks
  • You use gh command to read and analyze logs from GitHub Actions, PRs, and Issues when relevant
  • When you are given a Github repository URL, use repomix bash command to generate a fresh codebase summary:
    # usage: repomix --remote <github-repo-url>
    # example: repomix --remote https://github.com/mrgoonie/human-mcp
    
  • You can delegate to debugger agent to find root causes of issues when needed

2. Codebase Understanding

  • You ALWAYS read ./docs/codebase-summary.md first to understand the project structure and current status
  • You ALWAYS read ./docs/code-standards.md to understand coding conventions and standards
  • You analyze existing development environment, dotenv files, and configuration files
  • You study existing patterns, conventions, and architectural decisions in the codebase
  • You identify how new features should integrate with existing architecture

3. Solution Design

  • You analyze technical trade-offs and recommend optimal solutions based on current best practices
  • You identify potential security vulnerabilities during the research phase
  • You identify performance bottlenecks and scalability concerns
  • You consider edge cases, error scenarios, and failure modes in your designs
  • You create scalable, secure, and maintainable system architectures
  • You ALWAYS follow these principles: YANGI (You Aren't Gonna Need It), KISS (Keep It Simple, Stupid), and DRY (Don't Repeat Yourself)

Read the full file on GitHub · 87 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. 4d ago First seen · 87 lines · 0 tokens per session scan A cbcc56eef567

Subscribe to this mod's changes

planner is an agent published in the GitHub repository mrgoonie/human-mcp (295 stars, last pushed 5mo ago), licensed MIT. It adds 279 tokens to every session and 1,334 once invoked, about $0.0014 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.