resolve-section-ownership

resolve-section-ownership is a skill for Claude Code, Codex from plainlang/plain-forge. It costs 128 tokens per session (1,541 once invoked), scanned A, original, MIT.

A guide for deciding which section should contain each fact in a .plain specification. It separates descriptions of what software does, how it is built, and how it is tested.

In plain words
What is it for?
Use it to split mixed bullets, move implementation or test details into the right sections, and identify specifications that describe external systems instead of the software being built.
Why use it?
It prevents requirements from being placed where the renderer will ignore them or interpret them incorrectly.

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/plainlang/plain-forge/resolve-section-ownership
Any agent
npx skills add plainlang/plain-forge --skill resolve-section-ownership
Clone the repo
git clone --depth 1 https://github.com/plainlang/plain-forge

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 resolve-section-ownership

README.md
[![agentmods](https://agentmods.dev/badge/skills/plainlang/plain-forge/resolve-section-ownership.svg)](https://agentmods.dev/skills/plainlang/plain-forge/resolve-section-ownership)
Your own site
<a href="https://agentmods.dev/skills/plainlang/plain-forge/resolve-section-ownership"><img src="https://agentmods.dev/badge/skills/plainlang/plain-forge/resolve-section-ownership.svg" alt="Measured on agentmods" height="20"></a>
Per session 128 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,541 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 $0.00128 $0.01541
Opus 5 $0.00064 $0.00771
Sonnet 5 $0.00026 $0.00308
Haiku 4.5 $0.00013 $0.00154

Measured 4d ago against content hash e83f59a38426, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

resolve-section-ownership 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.

forge/skills/resolve-section-ownership/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Resolve Section Ownership

Always use the skill load-plain-reference to retrieve the ***plain syntax rules — but only if you haven't done so yet.

This is the ownership counterpart to break-down-func-spec. That skill splits one functional spec into several because it is too large; this one moves facts between sections because they are in the wrong place. The two are unrelated: a correctly placed spec can be too large, and a one-line bullet can be misplaced.

When to Use

  • A bullet answers more than one of what is it, what does it do, how is it built, how is it tested.
  • A requirement states a mechanism (retry, cache, token refresh, connection handling) but sits in ***functional specs***.
  • A :UnitTests: fact sits in ***test reqs***, or a :ConformanceTests: fact sits in ***implementation reqs*** — the generators read only their own section, so the fact is silently ignored today.
  • A functional spec describes an external system rather than the software being built.
  • A whole file is being audited for placement.

When Not to Use

  • The spec is correctly placed but too large → analyze-if-func-spec-too-complex, then break-down-func-spec.
  • Two specs contradict each other → analyze-func-specs, then resolve-spec-conflict.
  • The wording is merely verbose → trim per concise-specs.md; no fact changes section.

Input

The bullet, section, or .plain file to resolve.

Workflow

  1. Read the full .plain file — every section, plus its import and requires chains, so an existing home for a fact is visible before a new one is written.
  2. Identify the target — one bullet, one section, or the whole file.
  3. Decompose each bullet into atomic facts. A clause joined by and, which, so that, or a comma often carries a second fact. Keep each fact in the author's own words for now; rewording comes at step 6.
  4. Route each fact by the Section ownership table in module-structure.md. Where a fact resists the table, apply the question it encodes: would a caller of the finished software observe this? Yes → ***functional specs***. No, it is how the result is reached → ***implementation reqs***. It says what a term means → ***definitions***. It shapes :ConformanceTests:***test reqs***.
  5. Split a fact that carries both a mechanism and its consequence. The consequence is observable and becomes the functional spec; the mechanism becomes the implementation req. "Sends the same idempotency key on every retry, so a retried write creates at most one record" is two facts, not one.
  6. Give each moved fact a subject that exists in the built system. A fact leaving a functional spec often loses its subject: name the component that owns the behavior, and add it to ***definitions*** if it is not defined yet. :Implementation: is the whole codebase — use it only for a fact that holds everywhere.
  7. Author each fact into its owning section with the right edit skill — add-concept, add-implementation-requirement, add-test-requirement, add-acceptance-test. Never hand-author ***functional specs***: a fact moving into that section goes through add-functional-spec, which runs the complexity and conflict analyzers for you.
  8. Remove each fact from where it no longer belongs. If a bullet is left stating nothing observable, delete the bullet; do not leave a stub. Deleting the last bullet of a section deletes the section.
  9. Verify nothing was lost and nothing was duplicated. Walk every fact from the original text and confirm it appears in exactly one section. A fact that now reads as obvious in its new home is still a cut decision — make it deliberately, per concise-specs.md.
  10. Run plain-healthcheck. Moving facts changes the renderable surface; do not finish on a FAIL.
  11. Read the file again to confirm canonical section order (***definitions******implementation reqs******test reqs******functional specs***), correct syntax, and that every referenced concept is still defined before use.

Read the full file on GitHub · 66 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 · 66 lines · 128 tokens per session scan A e83f59a38426

Subscribe to this mod's changes

resolve-section-ownership is a skill published in the GitHub repository plainlang/plain-forge (55 stars, last pushed 2d ago), licensed MIT. It adds 128 tokens to every session and 1,541 once invoked, about $0.0006 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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