plan_phase

plan_phase is a command for coding agents from Fomo-Driven-Development/strategic-claude-base. It costs 9 tokens per session (5,105 once invoked), scanned A, original, MIT.

An implementation-planning command for a specific roadmap phase or milestone. It checks the product documentation and turns that phase's requirements into a detailed plan.

In plain words
What is it for?
Use it to plan one named phase or milestone from a product roadmap, with steps aligned to its goals and expected output.
Why use it?
It removes the need to piece together requirements and deliverables manually before coding. It can also use Codex guidance when that option is available.

Command

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 commands/fomo-driven-development/strategic-claude-base/plan_phase
Clone the repo
git clone --depth 1 https://github.com/Fomo-Driven-Development/strategic-claude-base

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_phase

README.md
[![agentmods](https://agentmods.dev/badge/commands/fomo-driven-development/strategic-claude-base/plan_phase.svg)](https://agentmods.dev/commands/fomo-driven-development/strategic-claude-base/plan_phase)
Your own site
<a href="https://agentmods.dev/commands/fomo-driven-development/strategic-claude-base/plan_phase"><img src="https://agentmods.dev/badge/commands/fomo-driven-development/strategic-claude-base/plan_phase.svg" alt="Measured on agentmods" height="20"></a>
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 5,105 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 $0.00009 $0.05105
Opus 5 $0.00005 $0.02552
Sonnet 5 $0.00002 $0.01021
Haiku 4.5 $0.00001 $0.00511

Measured 4d ago against content hash 51a868f0f350, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plan_phase 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.

.strategic-claude-basic/core/commands/plan_phase.md · 546 lines

How it starts

The opening of the file, as written. The whole thing — 546 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are tasked with creating focused implementation plans for specific phases or milestones from the product roadmap. You should validate product documentation exists, extract phase/milestone-specific requirements, and create detailed implementation plans aligned with the phase objectives and deliverables.

Phase/Milestone provided: $1

Flag Parsing

  • Check command arguments for --with-codex; if present, enable CODEX_PHASE_PLAN_MODE=true

  • Strip the flag from phase/milestone parameters before proceeding with validation

  • When CODEX_PHASE_PLAN_MODE=true, verify the mcp__codex__codex tool is available

    • If unavailable, inform the user:

      ❌ Codex mentorship unavailable — continuing with standard phase planning flow. Configure the Codex MCP server and rerun with `--with-codex` for guided validation.
      
    • After notifying the user, proceed in standard mode (treat CODEX_PHASE_PLAN_MODE=false)

  • When the tool is available, keep Codex mentorship enabled for the remaining steps

Initial Response

When this command is invoked:

  1. Check if phase/milestone number was provided:

    • If a phase/milestone number was provided as parameter (e.g., "2.3", "1", "Phase 2.1", "3"), proceed with validation
    • If no phase/milestone number provided, respond with:
I'll help you create implementation plans for specific phases or milestones from your product roadmap.

Please provide:
1. The phase or milestone number you want to plan (e.g., "1", "1.2", "2.3", "3")
2. Optional focus area or specific aspect to emphasize

Examples:
- `/plan_phase 2.3` - Creates plan for milestone 2.3 only
- `/plan_phase 3` - Creates plans for all milestones in phase 3 (3.1, 3.2, 3.3)
- `/plan_phase 1.1 infrastructure` - Creates plan for milestone 1.1 with infrastructure focus

I'll validate your product documentation, extract phase/milestone details, and create targeted implementation plans.

Then wait for the user's input.

Process Steps

Step 1: Product Documentation Validation

Read the full file on GitHub · 546 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 · 546 lines · 9 tokens per session scan A 51a868f0f350

Subscribe to this mod's changes

plan_phase is a command published in the GitHub repository Fomo-Driven-Development/strategic-claude-base (2 stars, last pushed 9mo ago), licensed MIT. It adds 9 tokens to every session and 5,105 once invoked, about $0.0000 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.