planning-mastery

planning-mastery is a skill for Claude Code from xenitV1/claude-code-maestro. It costs 25 tokens per session (726 once invoked), scanned A, original, MIT.

A concise format for writing software implementation plans that define the files, approach, affected features, and checks for success.

In plain words
What is it for?
Use it to plan features, map dependencies and tests that may break, choose an implementation strategy, and define verification steps.
Why use it?
It helps teams understand the architecture and possible side effects before code changes begin.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the maestro plugin — 13 skills, 1 command, 1 agent, 7 hooks, 1 MCP server shipped together

Good fit Use it to plan features, map dependencies and tests that may break, choose an implementation strategy, and define verification steps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/xenitv1/claude-code-maestro/planning-mastery
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 xenitV1/claude-code-maestro --skill planning-mastery
Clone the repo
git clone --depth 1 https://github.com/xenitV1/claude-code-maestro

Made for: Claude Code.

Or install maestro, the plugin that ships this one along with the rest of its 13 skills, 1 command, 1 agent, 7 hooks, 1 MCP server.

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-mastery

README.md
[![agentmods](https://agentmods.dev/badge/skills/xenitv1/claude-code-maestro/planning-mastery.svg)](https://agentmods.dev/skills/xenitv1/claude-code-maestro/planning-mastery)
Your own site
<a href="https://agentmods.dev/skills/xenitv1/claude-code-maestro/planning-mastery"><img src="https://agentmods.dev/badge/skills/xenitv1/claude-code-maestro/planning-mastery.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 726 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 $0.00025 $0.00726
Opus 5 $0.00013 $0.00363
Sonnet 5 $0.00005 $0.00145
Haiku 4.5 $0.00003 $0.00073

Measured 8d ago against content hash f56bf40118ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

planning-mastery 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 8d 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-mastery/SKILL.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

<domain_overview>

📋 RFC-Lite Planning Protocol

The 300-Line Limit: If your plan exceeds 300 lines, YOU HAVE FAILED. Rule: Code belongs in files, not plans. Do not write pseudo-code. Do not paste entire file contents. Focus: Define What (Files), How (Logic Strategy), and Success (Verification).

DEPENDENCY FORECASTING MANDATE (CRITICAL): Never propose a change without mapping its "Blast Radius". AI-generated plans frequently fail by ignoring downstream effects on coupled modules. Before defining file changes, you MUST explicitly identify which existing features or tests might break. If a change requires "Shotgun Surgery" (modifying more than 5 files for one feature), you MUST pause and propose an architectural abstraction instead. </domain_overview>

🎯 CORE PHILOSOPHY

Understanding comes before implementation. A well-designed solution is half-implemented. Never code without a clear design. <template_enforcement>

📝 MANDATORY TEMPLATE (Copy & Fill)

# [Task/Feature Name] - Implementation Plan
## 1. 🎯 Objective
[1-2 sentences strictly defining the goal.]
## 2. 🏗️ Tech Strategy
- **Pattern:** [e.g. Composition vs Inheritance]
- **State:** [e.g. Global Store vs Local Hook]
- **Constraints:** [e.g. "Must use LCH colors", "No external libs"]
## 3. 📂 File Changes
| Action | File Path | Brief Purpose |
|:-------|:----------|:--------------|
| [NEW]  | `src/components/MyComp.tsx` | Visual shell |
| [MOD]  | `src/App.tsx` | Routing integration |
## 4. 👣 Execution Sequence
1.  **Scaffold:** Create component files with types (No logic yet).
2.  **Logic:** Implement `useLogic.ts` hook with TDD.
3.  **Visuals:** Apply LCH gradients & Glassmorphism.
4.  **Connect:** Wire up to parent component.
## 5. ✅ Verification Standards
- [ ] **Visual:** Check against `frontend_reference.md` (no flat colors).
- [ ] **Interaction:** Verify `scale(0.97)` tap effect.
- [ ] **Console:** Zero errors during flow.

</template_enforcement> <strict_rules>

Read the full file on GitHub · 58 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. 8d ago First seen · 58 lines · 25 tokens per session scan A f56bf40118ae

Subscribe to this mod's changes

planning-mastery is a skill published in the GitHub repository xenitV1/claude-code-maestro (230 stars, last pushed 7mo ago), licensed MIT. It adds 25 tokens to every session and 726 once invoked, about $0.0001 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.

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