plan

plan is a skill for Claude Code from Master0fFate/parallax-claudecode. It costs 17 tokens per session (209 once invoked), scanned A, original, MIT.

A planning skill that creates an execution-ready software plan from evidence in a repository, without changing files.

In plain words
What is it for?
It helps plan coding tasks by identifying relevant files, acceptance criteria, verification steps, risks, assumptions, blockers, and deferred work.
Why use it?
It turns repository instructions, architecture, tests, and risks into concrete work items with checks, instead of relying on assumptions.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Part of the parallax-claudecode plugin — 9 skills, 1 command, 4 agents, 12 hooks, 1 MCP server 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/master0ffate/parallax-claudecode/plan
Any agent
npx skills add Master0fFate/parallax-claudecode --skill plan
Clone the repo
git clone --depth 1 https://github.com/Master0fFate/parallax-claudecode

Made for: Claude Code.

Or install parallax-claudecode, the plugin that ships this one along with the rest of its 9 skills, 1 command, 4 agents, 12 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 plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/master0ffate/parallax-claudecode/plan.svg)](https://agentmods.dev/skills/master0ffate/parallax-claudecode/plan)
Your own site
<a href="https://agentmods.dev/skills/master0ffate/parallax-claudecode/plan"><img src="https://agentmods.dev/badge/skills/master0ffate/parallax-claudecode/plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 209 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 5.1 $0.00017 $0.00209
Opus 5 $0.00009 $0.00105
Sonnet 5 $0.00003 $0.00042
Haiku 4.5 $0.00002 $0.00021

Measured 5d ago against content hash b2b2c903a922, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

plan 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.

skills/plan/SKILL.md · 20 lines

What it actually says

Plan

Pass the current Claude session ID to parallax_plan, then plan $ARGUMENTS without modifying files.

  1. Read project instructions, manifests, architecture, tests, and the nearest comparable implementation.
  2. Resolve material ambiguity. State the four invariants with concrete owners and paths.
  3. Analyze nominal behavior, boundaries, errors, security, concurrency, compatibility, rollback, and observability.
  4. For cross-subsystem or high-risk work, run the Hyperplan skill and incorporate only critiques supported by evidence.
  5. Produce ordered, atomic items. Each item must name its files or component, observable acceptance criterion, and targeted check.
  6. Identify assumptions, external blockers, and deferred work explicitly.

A good plan is short enough to execute, detailed enough for another agent to verify, and does not claim certainty unsupported by repository evidence.

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 · 20 lines · 17 tokens per session scan A b2b2c903a922

Subscribe to this mod's changes

plan is a skill published in the GitHub repository Master0fFate/parallax-claudecode (0 stars, last pushed 12d ago), licensed MIT. It adds 17 tokens to every session and 209 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 2026-08-31.

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