analyze-2-func-specs

analyze-2-func-specs is a skill for Claude Code, Codex from plainlang/plain-forge. It costs 50 tokens per session (813 once invoked), scanned A, original, MIT.

A checker for compatibility between two functional specifications. It reports only whether the two requirements are compatible or conflicting.

In plain words
What is it for?
Use it when reviewing two specific requirements in the same plain file or in linked specification files.
Why use it?
It quickly confirms whether two requirements can coexist when a possible contradiction is suspected.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when reviewing two specific requirements in the same plain file or in linked specification files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/plainlang/plain-forge/analyze-2-func-specs
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 plainlang/plain-forge --skill analyze-2-func-specs
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 analyze-2-func-specs

README.md
[![agentmods](https://agentmods.dev/badge/skills/plainlang/plain-forge/analyze-2-func-specs/github.svg)](https://agentmods.dev/skills/plainlang/plain-forge/analyze-2-func-specs)
Your own site
<a href="https://agentmods.dev/skills/plainlang/plain-forge/analyze-2-func-specs"><img src="https://agentmods.dev/badge/skills/plainlang/plain-forge/analyze-2-func-specs/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 analyze-2-func-specs

Your own site · 80×15
<a href="https://agentmods.dev/skills/plainlang/plain-forge/analyze-2-func-specs"><img src="https://agentmods.dev/badge/skills/plainlang/plain-forge/analyze-2-func-specs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 813 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 pass 7 Sept 2026
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 $0.00050 $0.00813
Opus 5.5 $0.00020 $0.00325
Sonnet 5.5 $0.00010 $0.00163
Haiku 4.5 $0.00005 $0.00081

Measured 1mo ago against content hash c045682346ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

analyze-2-func-specs 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 1mo 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/analyze-2-func-specs/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Analyze Two Functional Specs

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

Input

Two functional specs from a .plain file (or across requires modules). The user provides them directly or points to them by location in a file.

Workflow

  1. Read both functional specs and the ***definitions*** section so all referenced :Concepts: are understood.
  2. Determine chronological order — which spec comes first? The earlier spec was rendered first and the later spec was rendered with the earlier one in context.
  3. Run the conflict analysis using the checklist below.
  4. Output the verdict and nothing else — either COMPATIBLE or CONFLICTING. No reasoning, no category labels, no resolution suggestions.

Conflict Analysis Checklist

Work through each question. If any answer is "yes", the specs likely conflict.

1. Direct Contradiction

Do the two specs make mutually exclusive assertions about the same behavior?

Spec A: :Resource: items are returned sorted by name in ascending order.
Spec B: :Resource: items are returned sorted by creation date in descending order.

Verdict: CONFLICTING — both define the sort order for the same response,
but specify different fields and directions. A single implementation cannot
satisfy both unless scoped to different contexts.

2. State or Data Conflict

Does one spec set a state or value that the other spec assumes is different?

Spec A: :TaskList: is initially empty.
Spec B: :TaskList: contains a default "Welcome" :Task: on first load.

Verdict: CONFLICTING — both define the initial state of :TaskList: differently.

3. Behavioral Override

Does the later spec silently replace behavior established by the earlier spec without acknowledging it?

Spec A: :User: credentials are validated using an API key.
Spec B: :User: credentials are validated using OAuth 2.0.

Verdict: CONFLICTING — both define the authentication mechanism but pick
different approaches. The later spec overrides the earlier one.

Read the full file on GitHub · 103 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. 1mo ago First seen · 103 lines · 50 tokens per session scan A c045682346ba

Subscribe to this mod's changes

analyze-2-func-specs is a skill published in the GitHub repository plainlang/plain-forge (79 stars, last pushed yesterday), licensed MIT. It adds 50 tokens to every session and 813 once invoked, about $0.0002 per session on Opus 5.5. 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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