planning

planning is a skill for Claude Code, Codex from scolladon/craft. It costs 30 tokens per session (534 once invoked), scanned A, original, MIT.

A planning step in a software-development process that creates an implementation plan divided into parts. TDD means test-driven development: writing tests to guide the code before or alongside its implementation.

In plain words
What is it for?
Use it to turn a design brief and accepted architecture decisions into a tested, linted implementation plan.
Why use it?
It gives developers a structured plan for building a change and checks that each part includes the context needed to implement it correctly.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the craft plugin — 20 skills, 4 commands, 18 agents, 1 hook shipped together

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 skills/scolladon/craft/planning
Any agent
npx skills add scolladon/craft --skill planning
Clone the repo
git clone --depth 1 https://github.com/scolladon/craft

Made for: Claude Code, Codex.

Or install craft, the plugin that ships this one along with the rest of its 20 skills, 4 commands, 18 agents, 1 hook.

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 planning

README.md
[![agentmods](https://agentmods.dev/badge/skills/scolladon/craft/planning.svg)](https://agentmods.dev/skills/scolladon/craft/planning)
Your own site
<a href="https://agentmods.dev/skills/scolladon/craft/planning"><img src="https://agentmods.dev/badge/skills/scolladon/craft/planning.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 534 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 $0.00030 $0.00534
Opus 5 $0.00015 $0.00267
Sonnet 5 $0.00006 $0.00107
Haiku 4.5 $0.00003 $0.00053

Measured 4d ago against content hash 5e0dcf4d3720, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

planning 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.

skills/planning/SKILL.md · 38 lines

What it actually says

craft:planning

Preamble (always runs — non-overridable)

  1. Manifest read (lint if standalone).
  2. Probe: plan directory (paths.plan, else docs/plan/, create if absent); design doc present? present → hard input; absent → the planner's mandatory input is the resolved brief and it performs its own exploration (slower, never blocked).
  3. Memory read/write surface (advisory). READS: part-sizing entries from prior runs as a weak planner hint (no per-use re-check; confidence-weighted). Prepended to the planner spawn's injected block when non-empty. WRITES: none directly from this phase — part sizing is observed at implementation when each part's pass/blocked outcome is known.
  4. Intention consult surface (advisory). The phase receives the intention consult slice on slot 1 — the IntentionView entries whose subjects intersect this phase's change scope, prepended into the same injected contract block as the memory hint (see skills/run/SKILL.md step 4). An empty slice means the phase probes as today.

Procedure (default body — a manifest override: replaces everything below)

  1. Spawn craft:planner with: the design doc path (or brief) + the accepted ADR paths; the absolute working directory; the output path <plan-dir>/<slug>.md; the template "${CRAFT_ROOT:-${CLAUDE_PLUGIN_ROOT}}/templates/plan.md"; the part-gate command (manifest gates.part, or probe: the repo's test runner over touched files, falling back to gates.phase); the commit message docs(plan): <slug>; global + planning-phase context: files verbatim.
  2. When it returns: run "${CRAFT_ROOT:-${CLAUDE_PLUGIN_ROOT}}/scripts/plan-lint.sh" <plan-path>the phase cannot close red. On failure, respawn fresh with the lint output; ≤2 respawns, then escalate.
  3. Read the plan; verify part sizing (no test-only parts) and that part contexts reference real files/symbols (spot-check). Record in the run record.
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 · 38 lines · 30 tokens per session scan A 5e0dcf4d3720

Subscribe to this mod's changes

planning is a skill published in the GitHub repository scolladon/craft (2 stars, last pushed 16d ago), licensed MIT. It adds 30 tokens to every session and 534 once invoked, about $0.0002 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.

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