plan

plan is a command for Claude Code from vsladkov/claudex-stereo. It costs 14 tokens per session (2,125 once invoked), scanned A, original, Apache-2.0.

A command for drafting or reviewing an implementation plan with selected Claude or Codex models.

In plain words
What is it for?
It is for choosing planning and review models, creating a plan, and checking that plan. The command itself does not implement the work.
Why use it?
It separates planning from coding and adds a review step, helping catch planning problems before implementation begins.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool; mentions Codex.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the stereo plugin — 4 skills, 15 commands, 1 agent, 3 hooks shipped together

Good fit It is for choosing planning and review models, creating a plan, and checking that plan. The command itself does not implement the work.

Compare 6 commands from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add vsladkov/claudex-stereo
Claude Code
/plugin install stereo

Made for: Claude Code.

Or install stereo, the plugin that ships this one along with the rest of its 4 skills, 15 commands, 1 agent, 3 hooks.

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

README.md
[![agentmods](https://agentmods.dev/badge/commands/vsladkov/claudex-stereo/plan/github.svg)](https://agentmods.dev/commands/vsladkov/claudex-stereo/plan)
Your own site
<a href="https://agentmods.dev/commands/vsladkov/claudex-stereo/plan"><img src="https://agentmods.dev/badge/commands/vsladkov/claudex-stereo/plan/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for plan

Your own site · 80×15
<a href="https://agentmods.dev/commands/vsladkov/claudex-stereo/plan"><img src="https://agentmods.dev/badge/commands/vsladkov/claudex-stereo/plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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 2,125 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00014 $0.02125
Opus 5.5 $0.00006 $0.00850
Sonnet 5.5 $0.00003 $0.00425
Haiku 4.5 $0.00001 $0.00213

Measured 21d ago against content hash ce84d43fd2a7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

plan 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 21d 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.

plugins/stereo/commands/plan.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

First Read ${CLAUDE_PLUGIN_ROOT}/skills/model-routing/SKILL.md, then ${CLAUDE_PLUGIN_ROOT}/skills/model-routing/pair-procedures.md and ${CLAUDE_PLUGIN_ROOT}/skills/model-routing/plan-procedures.md, and apply their rules. The rules below are step-specific; a quoted heading names the section of a routing file that defines the step.

Run the planning phase of the Stereo workflow. The current Claude session orchestrates; the selected planner and plan reviewer perform their routed steps. Never implement from this command.

Raw slash-command arguments: $ARGUMENTS

Arguments and modes

Parse every argument per "Selection and effort parsing" before inspecting the repository, then read the "Workspace role defaults":

  • --planner <model> and --planner-effort <effort> select the drafter and its effort.
  • --plan-reviewer <model> and --plan-reviewer-effort <effort> select the plan reviewer and its effort.
  • --max-plan-rounds <n> defaults to 6.
  • --slot <name> selects the durable plan slot this run stores into and defaults to default. Slot names are trimmed, lowercased, may contain only letters, digits, hyphens, and underscores, and must start with a letter or digit. Relay the CLI's validation error verbatim.
  • --draft-only runs one draft step, stores it, and stops.
  • --review-only reviews the stored plan exactly once and stops.
  • --plan-file <path> reviews that external plan exactly once and is valid only with --review-only.
  • Without a mode flag, run the complete draft-plus-review/revision phase.

claude:session is legal for both roles. Reject both mode flags together. For --review-only, reject task text, --planner, and --planner-effort. Reject --plan-file with --draft-only or the full phase and say that it requires --review-only. For --draft-only, reject --plan-reviewer, --plan-reviewer-effort, and --max-plan-rounds. The full phase and --draft-only require task text; if it is empty, ask the user what to plan.

In --review-only and at explicit user-decision points, stop after presenting review findings and let the user decide what changes. During the full phase's review loop, revise automatically.

Read the full file on GitHub · 158 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. 21d ago Changed · -191 lines ce84d43fd2a7
  2. 1mo ago Changed · -1 lines 8e5110c33021
  3. 1mo ago Changed · +1 lines fda578d169de
  4. 1mo ago First seen · 349 lines · 14 tokens per session scan A bfa8ccbe3c57

Subscribe to this mod's changes

plan is a command published in the GitHub repository vsladkov/claudex-stereo (4 stars, last pushed 21d ago), licensed Apache-2.0. It adds 14 tokens to every session and 2,125 once invoked, about $0.0001 per session on Opus 5.5. 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.