planning

planning is a skill for Claude Code from Jamie-BitFlight/claude_skills. It costs 61 tokens per session (1,195 once invoked), scanned A, original, MIT.

A planning step that turns a completed discovery report into an actionable project plan. It checks whether important information is available before defining the design, tests, and risks.

In plain words
What is it for?
Designing an implementation approach, listing components and acceptance tests, and assessing risks after discovery.
Why use it?
It reduces plans based on missing or invented requirements by identifying prerequisites and unresolved inputs first.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: model in frontmatter.

Part of the dh plugin — 53 skills, 28 agents shipped together

Good fit Designing an implementation approach, listing components and acceptance tests, and assessing risks after discovery.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jamie-bitflight/claude_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 Jamie-BitFlight/claude_skills --skill planning
Clone the repo
git clone --depth 1 https://github.com/Jamie-BitFlight/claude_skills

Made for: Claude Code.

Or install dh, the plugin that ships this one along with the rest of its 53 skills, 28 agents.

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/jamie-bitflight/claude_skills/planning/github.svg)](https://agentmods.dev/skills/jamie-bitflight/claude_skills/planning)
Your own site
<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/planning"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_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/jamie-bitflight/claude_skills/planning"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/planning.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,195 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 4
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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 $0.00061 $0.01195
Opus 5 $0.00030 $0.00598
Sonnet 5 $0.00012 $0.00239
Haiku 4.5 $0.00006 $0.00120

Measured 5d ago against content hash f3212df189b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 5d 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/development-harness/skills/planning/SKILL.md · 196 lines

How it starts

The opening of the file, as written. The whole thing — 196 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SAM Stage 2 — Planning

Role

You are the planning agent for the SAM pipeline. You transform discovery artifacts into an actionable design with verified prerequisites. You use RT-ICA as a gate to ensure no critical inputs are missing or invented.

When to Use

  • After Stage 1 Discovery produces ARTIFACT:DISCOVERY
  • When translating requirements into a solution design
  • When assessing feasibility before committing to implementation

Process

flowchart TD
    Start([ARTIFACT:DISCOVERY]) --> ICA[1. RT-ICA Assessment]
    ICA --> Q{Critical items MISSING?}
    Q -->|Yes| Block[BLOCK — request missing information]
    Block --> ICA
    Q -->|No| Design[2. Solution Design]
    Design --> Accept[3. Acceptance Tests]
    Accept --> Risk[4. Risk Assessment]
    Risk --> Draft[5. Draft ARTIFACT:PLAN]
    Draft --> Done([ARTIFACT:PLAN complete])

Step 1 — RT-ICA Prerequisite Assessment

Before designing a solution, verify all prerequisites are available.

Activate /dh:planner-rt-ica to perform this assessment.

For each prerequisite, classify as:

  • AVAILABLE — input exists and is accessible
  • DERIVABLE — input can be obtained from existing sources (specify how)
  • MISSING — input does not exist and cannot be derived

If any MISSING item is critical to the design, BLOCK and request it from the user or create a discovery task to obtain it.

Step 2 — Solution Design

  • Approach — high-level strategy (not implementation details)
  • Components — what logical pieces make up the solution
  • Interactions — how components relate to each other
  • Boundaries — what this design does and does not cover

Step 3 — Acceptance Tests

Define acceptance tests in Given/When/Then format:

Given <precondition>
When <action>
Then <observable outcome>

Each goal from ARTIFACT:DISCOVERY must have at least one acceptance test.

Step 4 — Risk Assessment

For each identified risk:

  • Risk — what could go wrong
  • Likelihood — low / medium / high
  • Impact — low / medium / high
  • Mitigation — how to prevent or recover

Read the full file on GitHub · 196 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. 5d ago First seen · 196 lines · 61 tokens per session scan A f3212df189b7

Subscribe to this mod's changes

planning is a skill published in the GitHub repository Jamie-BitFlight/claude_skills (66 stars, last pushed yesterday), licensed MIT. It adds 61 tokens to every session and 1,195 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 2026-09-03.

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