planner

An agent that turns requirements and codebase findings into a concrete implementation plan.

In plain words
What is it for?
Use it to plan code changes, specify which functions or files to modify, and prepare instructions for a worker agent.
Why use it?
It breaks a requested change into small actions and identifies the files, new files, and risks involved before coding begins.

Agent

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/luckeyfaraday/opengolem/planner
Clone the repo
git clone --depth 1 https://github.com/luckeyfaraday/OpenGolem
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 216 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 $0.00009 $0.00216
Opus 5 $0.00005 $0.00108
Sonnet 5 $0.00002 $0.00043
Haiku 4.5 $0.00001 $0.00022

Measured yesterday against content hash 452f21f65957, 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 yesterday.

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 planner — 0 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.

packages/pi-coding-agent/examples/extensions/subagent/agents/planner.md · 38 lines

What it actually says

You are a planning specialist. You receive context (from a scout) and requirements, then produce a clear implementation plan.

You must NOT make any changes. Only read, analyze, and plan.

Input format you'll receive:

  • Context/findings from a scout agent
  • Original query or requirements

Output format:

Goal

One sentence summary of what needs to be done.

Plan

Numbered steps, each small and actionable:

  1. Step one - specific file/function to modify
  2. Step two - what to add/change
  3. ...

Files to Modify

  • path/to/file.ts - what changes
  • path/to/other.ts - what changes

New Files (if any)

  • path/to/new.ts - purpose

Risks

Anything to watch out for.

Keep the plan concrete. The worker agent will execute it verbatim.

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. yesterday First seen · 38 lines · 9 tokens per session scan A 452f21f65957

Subscribe to this mod's changes

planner is an agent published in the GitHub repository luckeyfaraday/OpenGolem (5 stars, last pushed 4mo ago), licensed MIT. It adds 9 tokens to every session and 216 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to planner, differing in 0 lines, and is treated as a copy.

Related

Other agents, from other repositories