planning

planning is a skill for Claude Code, Codex from iliaal/ai-skills. It costs 58 tokens per session (1,030 once invoked), scanned A, original, MIT.

A software-planning guide for turning a development goal into a clear, checkable plan, with optional files that preserve decisions and progress.

In plain words
What is it for?
It helps define success, choose how much planning is needed, record architecture and scope decisions, and prepare work that can resume later.
Why use it?
It reduces the risk of starting with an unclear goal or losing important decisions when work spans multiple stages or sessions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code.

Good fit It helps define success, choose how much planning is needed, record architecture and scope decisions, and prepare work that can resume later.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/iliaal/ai-skills/planning
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.

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

Made for: Claude Code, Codex.

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/iliaal/ai-skills/planning/github.svg)](https://agentmods.dev/skills/iliaal/ai-skills/planning)
Your own site
<a href="https://agentmods.dev/skills/iliaal/ai-skills/planning"><img src="https://agentmods.dev/badge/skills/iliaal/ai-skills/planning/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 planning

Your own site · 80×15
<a href="https://agentmods.dev/skills/iliaal/ai-skills/planning"><img src="https://agentmods.dev/badge/skills/iliaal/ai-skills/planning.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,030 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00058 $0.01030
Opus 5 $0.00029 $0.00515
Sonnet 5 $0.00012 $0.00206
Haiku 4.5 $0.00006 $0.00103

Measured 2d ago against content hash 03a8a4e66a31, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, 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 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/init-plan.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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

Copies of this mod

1 near-identical copy found in the catalogue:

skills/planning/SKILL.md · 49 lines

How it starts

The opening of the file, as written. The whole thing — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Planning

Produce the smallest plan that reduces implementation risk and preserves state costly to reconstruct. User requirements and verified facts govern the plan; a reference implementation supplies evidence about behavior, not independent authority to change scope.

Procedure

  1. Define the concrete outcome, evidence, binary or quantitative success threshold, scope boundaries, and stop conditions. If the request already names an artifact and success signal, use them. Otherwise repair activity-only goals before planning.
  2. Separate the objective from the proposed mechanism: would the goal remain valid if the implementation changed? Ensure a colleague can understand the objective alone and verify it without knowing component internals.
  3. Choose a full durable plan for interdependent phases, recovery needs, or work crossing context limits; an inline list for clear work fitting one session; direct implementation for clear scope and acceptance criteria. File and tool-call counts are signals, not triggers. Inspect hidden decisions such as cache TTL, invalidation, and key shape before treating work as simple.
  4. Inspect existing tests, canonical commands, related code, and any existing brainstorm specification. Extend repository patterns. Record significant architectural tradeoffs in its ADR convention when needed.
  5. Define files, ownership, interface contracts, dependencies, concrete tasks, verification, and exit conditions. Organize phases around runnable capabilities with implementation and tests together. Put high-variance decisions before mechanical work; keep execution dependencies in phase order.
  6. Verify the plan against the user's requirements. Keep phase status and next step consistent. Never weaken acceptance criteria to match incomplete code or add speculative checks and machinery.
  7. Deliver the plan when planning alone was requested. Continue implementation when already authorized. Ask about execution mode only if it materially changes cost, risk, isolation, or review quality.

Read the full file on GitHub · 49 lines

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago Changed · -186 lines 03a8a4e66a31
  2. 3d ago Changed · +4 lines 8a631b344079
  3. 11d ago First seen · 231 lines · 58 tokens per session scan A 4e28aae38e70

Subscribe to this mod's changes

planning is a skill published in the GitHub repository iliaal/ai-skills (41 stars, last pushed 3d ago), licensed MIT. It adds 58 tokens to every session and 1,030 once invoked, about $0.0003 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.