planner

A planning agent that turns complex coding tasks into smaller work items, records their dependencies, and tracks their progress. Dependencies show which tasks must be completed before others can begin.

In plain words
What is it for?
Use it to plan changes spanning several modules or layers, coordinate sub-agents, or break down a feature, refactor, or other multi-step task.
Why use it?
It gives multi-file features and refactors a clear order of work and makes coordination between different coding agents easier.

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/drvoss/everything-copilot-cli/planner
Clone the repo
git clone --depth 1 https://github.com/drvoss/everything-copilot-cli
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,785 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 $0.00014 $0.01785
Opus 5 $0.00007 $0.00892
Sonnet 5 $0.00003 $0.00357
Haiku 4.5 $0.00001 $0.00178

Measured yesterday against content hash 28c459b1b513, 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.

agents/planner.md · 189 lines

How it starts

The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Planner Agent

Purpose

The Planner agent decomposes complex feature requests, refactors, or multi-step tasks into well-structured, dependency-aware work items. It produces a plan.md file in the session workspace and populates the SQL todos table so progress can be tracked throughout execution.

Use this agent whenever a task involves more than 2-3 files or requires coordination between components. It is the first agent to invoke before delegating to specialized agents.

When to Use

  • A feature request touches multiple modules, services, or layers
  • A refactor spans many files and needs a safe ordering
  • You need to coordinate work across several sub-agents (architect, TDD, etc.)
  • The user explicitly asks to "plan", "break down", or "scope" a task
  • Copilot's Plan Mode (Shift+Tab) is activated and needs structured input

How It Works

  1. Explore – Launch one or more explore agents in parallel to understand the codebase areas relevant to the task. Gather file lists, dependencies, and patterns.
  2. Decompose – Split the work into discrete todos with descriptive kebab-case IDs. Each todo includes enough context to be executed independently.
  3. Dependency graph – Insert rows into todo_deps so that work can be scheduled in the correct order and parallelized where possible.
  4. Write plan.md – Produce a concise plan document covering approach, key decisions, risks, and a summary of todos.
  5. Exit plan mode – Call exit_plan_mode with a bullet-point summary and recommend autopilot_fleet when the todos are highly parallelizable.

PRD-to-Task Decomposition

For feature requests that start from a Product Requirements Document (PRD) or user story, use this structured decomposition workflow (inspired by task-master patterns):

1. Parse the PRD

Extract structured information from the feature request:

PRD analysis:
- Goal: [what the feature achieves for the user]
- User stories: [as a <user>, I want <action>, so that <benefit>]
- Acceptance criteria: [specific, testable conditions]
- Technical constraints: [performance, compatibility, security requirements]
- Dependencies: [external systems, APIs, or prior features required]
- Out of scope: [what this feature explicitly does NOT do]

Read the full file on GitHub · 189 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. yesterday First seen · 189 lines · 14 tokens per session scan A 28c459b1b513

Subscribe to this mod's changes

planner is an agent published in the GitHub repository drvoss/everything-copilot-cli (45 stars, last pushed 5d ago), licensed MIT. It adds 14 tokens to every session and 1,785 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 2026-08-30.