fp-delete-scope

fp-delete-scope is a skill for Claude Code, Codex from MiaoY0uShan/FP. It costs 34 tokens per session (1,632 once invoked), scanned A, original, MIT.

A scope-cutting method for reducing a software request to the smallest verifiable version that meets the real goal. It applies first-principles reasoning, meaning it separates what must exist from assumptions and optional design.

In plain words
What is it for?
Use it after the requirements are understood when several implementations or sources of scope are possible. It helps define the minimum feature set, remove unnecessary work, and keep boundaries between parts clear.
Why use it?
It prevents nice-to-have features and premature abstractions from turning a focused task into a large system. It also encourages reusing existing capabilities before adding new code.

Skill for Claude CodeCodex

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/miaoy0ushan/fp/delete-scope
Any agent
npx skills add MiaoY0uShan/FP --skill delete-scope
Clone the repo
git clone --depth 1 https://github.com/MiaoY0uShan/FP

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 fp-delete-scope

README.md
[![agentmods](https://agentmods.dev/badge/skills/miaoy0ushan/fp/delete-scope.svg)](https://agentmods.dev/skills/miaoy0ushan/fp/delete-scope)
Your own site
<a href="https://agentmods.dev/skills/miaoy0ushan/fp/delete-scope"><img src="https://agentmods.dev/badge/skills/miaoy0ushan/fp/delete-scope.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,632 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 $0.00034 $0.01632
Opus 5 $0.00017 $0.00816
Sonnet 5 $0.00007 $0.00326
Haiku 4.5 $0.00003 $0.00163

Measured 4d ago against content hash 60f301a7614f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fp-delete-scope 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.

fp/delete-scope/SKILL.md · 352 lines

How it starts

The opening of the file, as written. The whole thing — 352 lines — stays where its author put it; the contents beside it link to each section on GitHub.

FP: Delete Scope

Delete before architecture.

This skill takes the real goal from question-requirements and reduces it to the smallest verifiable MVP.

It uses:

  • first-principles reasoning
  • Occam's Razor
  • MVP-first scope cutting
  • early decoupling boundaries

Do not design the full system while using this skill. Do not write code while using this skill.


When to use

Use this skill after question-requirements when:

  • the real goal has been identified,
  • the task has more than one possible implementation,
  • the request contains nice-to-have work,
  • the agent may add premature abstractions,
  • the task may sprawl across modules,
  • the user wants an MVP,
  • the architecture should stay decoupled.

For tiny edits, do not run the full process.


Core principles

1. First principles

Keep only what is necessary to satisfy the real goal.

Ask:

What must be true for the user outcome to be achieved?
What capability is irreducible?
What evidence proves that the outcome exists?
What is merely an implementation assumption?

2. Occam's Razor

Do not add entities without necessity.

An entity can be a feature, command, file, module, abstraction, adapter, workflow, automation, runtime, state file, database, agent role, example, test surface, or documentation page.

If the MVP still works without it, delete or defer it.

3. MVP before architecture

Do not design the full system before the minimum useful version is defined.

Architecture should be based on the MVP, not on imagined future scale.


Required input

Use the output from question-requirements if available:

  • likely real goal
  • success criteria
  • failure paths
  • assumptions
  • non-goals
  • decision

If the real goal is still unclear, stop and return:

Decision: ask_user
Reason: delete-scope requires a clarified real goal.
Smallest useful question: ...

Procedure

1. Restate the real goal

Use the clarified goal from question-requirements.

Read the full file on GitHub · 352 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. 4d ago First seen · 352 lines · 34 tokens per session scan A 60f301a7614f

Subscribe to this mod's changes

fp-delete-scope is a skill published in the GitHub repository MiaoY0uShan/FP (3 stars, last pushed 28d ago), licensed MIT. It adds 34 tokens to every session and 1,632 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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