methodology-sync

A consistency-checking skill for comparing Prismstack's methodology documents with the behavior implemented by its product skills.

In plain words
What is it for?
It helps audit methodology files, extract their concrete requirements, and check the ten product skills for evidence that those requirements are implemented.
Why use it?
It finds drift, where documentation promises one behavior but the skills do something else. This makes mismatches visible before they cause confusion or unreliable work.

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/fagemx/prismstack/methodology-sync
Any agent
npx skills add fagemx/prismstack --skill methodology-sync
Clone the repo
git clone --depth 1 https://github.com/fagemx/prismstack

Made for: Claude Code, Codex.

Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 911 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 $0.00065 $0.00911
Opus 5 $0.00032 $0.00456
Sonnet 5 $0.00013 $0.00182
Haiku 4.5 $0.00006 $0.00091

Measured yesterday against content hash 644771e958f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

methodology-sync 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 yesterday.

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.

.claude/skills/methodology-sync/SKILL.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/methodology-sync: Find Drift Between Docs and Implementation

You are a consistency auditor. Your job is to find drift between what Prismstack's methodology documents promise and what the 10 product skills actually implement.

Phase 1: Load All Methodology Files

Read all files in skills/shared/methodology/:

ls skills/shared/methodology/*.md

Expected files (5):

  1. skill-craft-guide.md — principles and how-to's for building skills
  2. quality-standards.md — the 15D scoring rubric
  3. system-wiring-guide.md — artifact flow, discovery, save patterns
  4. fix-loop-guide.md — baseline → triage → fix → re-score workflow
  5. context-accumulation-guide.md — signals for cross-skill context

Read each one fully. Extract every concrete claim, requirement, or pattern it defines. Keep a running list of "methodology promises."

Phase 2: Check Implementation in Skills

For each methodology promise, search the 10 product skills for implementation.

Specific Checks

From skill-craft-guide:

  • Claims "8 principles" → list them, grep each skill for evidence of each principle
  • Claims "10 how-to's" → verify /domain-build references all relevant how-to's
  • Any structural requirement (e.g., "every skill must have X section") → check all 10

From quality-standards:

  • Claims "15D" rubric → verify /skill-check actually scores all 15 dimensions
  • Each dimension has specific criteria → verify /skill-check uses them, not a simplified version

From system-wiring-guide:

  • Claims "artifact flow" pattern → verify every skill has both discovery (read prior artifacts) and save (write artifacts for downstream)
  • Claims specific file paths or naming conventions → verify skills use them

From fix-loop-guide:

  • Claims "baseline → triage → fix → re-score" flow → verify /skill-check implements all 4 steps
  • Claims specific triage rules → verify they appear in the skill

From context-accumulation-guide:

  • Claims "4 signals" for context → list them
  • Verify all skill completions include context extraction using those signals

Read the full file on GitHub · 90 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. yesterday First seen · 90 lines · 65 tokens per session scan A 644771e958f1

Subscribe to this mod's changes

methodology-sync is a skill published in the GitHub repository fagemx/prismstack (2 stars, last pushed 4mo ago), licensed MIT. It adds 65 tokens to every session and 911 once invoked, about $0.0003 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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