SDLC-validate

SDLC-validate is a skill for Claude Code, Codex from pangon/ai-sdlc-framework. It costs 83 tokens per session (2,444 once invoked), scanned A, original, Apache-2.0.

A read-only checker for software projects that use a structured software development life cycle, or SDLC. It compares project documents, indexes, links, statuses, identifiers, requirements, tests, and the recorded current phase.

In plain words
What is it for?
Use it to validate SDLC documents and report structural problems without changing any files.
Why use it?
It finds inconsistencies that a status dashboard may miss, such as broken links, mismatched indexes, invalid statuses, missing traceability, or an inaccurate phase record.

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/pangon/ai-sdlc-framework/sdlc-validate
Any agent
npx skills add pangon/ai-sdlc-framework --skill sdlc-validate
Clone the repo
git clone --depth 1 https://github.com/pangon/ai-sdlc-framework

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 SDLC-validate

README.md
[![agentmods](https://agentmods.dev/badge/skills/pangon/ai-sdlc-framework/sdlc-validate.svg)](https://agentmods.dev/skills/pangon/ai-sdlc-framework/sdlc-validate)
Your own site
<a href="https://agentmods.dev/skills/pangon/ai-sdlc-framework/sdlc-validate"><img src="https://agentmods.dev/badge/skills/pangon/ai-sdlc-framework/sdlc-validate.svg" alt="Measured on agentmods" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,444 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 $0.00083 $0.02444
Opus 5 $0.00042 $0.01222
Sonnet 5 $0.00017 $0.00489
Haiku 4.5 $0.00008 $0.00244

Measured 5d ago against content hash 1aba6611614d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

SDLC-validate 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.

.claude/skills/SDLC-validate/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Instructions

You are running a read-only consistency validation over the repository's SDLC artifacts. You verify mechanically checkable invariants and report violations — you do not modify any file. This skill is the deep counterpart of /SDLC-status: where the dashboard reads index tables and trusts them, validation opens the artifacts and verifies that the indexes, links, statuses, and Current State tell the truth.

Setup

  1. Read CLAUDE.md — the Current State Protocol, the ### Current State content, the Phase Gates table, and the artifact naming rules — and FRAMEWORK.md (the framework/project boundary manifest). These are the authorities the checks verify against; do not invent stricter rules than documented.
  2. Read 1-spec/CLAUDE.spec.md (index tables, status lifecycles), 2-design/CLAUDE.design.md, 3-code/CLAUDE.code.md, and 4-deploy/CLAUDE.deploy.md.
  3. Read 1-spec/stakeholders.md.
  4. List artifact files, excluding _template*.md files: 1-spec/goals/, 1-spec/user-stories/, 1-spec/requirements/, 1-spec/assumptions/, 1-spec/constraints/, 2-design/*.md (excluding CLAUDE.design.md), decisions/ (also excluding PROCEDURES.md), 3-code/*/CLAUDE.md (component directories), 3-code/tasks.md, 3-code/verification.md and 3-code/*/verification.md (verification indexes), 3-code/implementation-log/, 4-deploy/runbooks/.
  5. Open artifact files as required by the checks below.

Checks

Run every check whose subject exists; skip checks whose subject does not exist yet (e.g., task checks before an implementation plan) and list the skips in the report — a phase not yet reached is not a finding.

1. Index ↔ file synchronization
  • Every artifact file has exactly one row in its index; every index row's File link resolves to an existing file. This includes the design documents: every 2-design/*.md (excluding the template and the phase file) has a row in the Design Documents Index and vice versa, and architecture.md is always listed.
  • Index metadata (Type, Status, Priority, link columns) matches the fields inside the artifact file.
  • Decision indexes: every DEC-*.md with a matching trigger appears in the corresponding phase/component index; no index lists a decision whose Status is Deprecated or Superseded.

Read the full file on GitHub · 105 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. 5d ago First seen · 105 lines · 83 tokens per session scan A 1aba6611614d

Subscribe to this mod's changes

SDLC-validate is a skill published in the GitHub repository pangon/ai-sdlc-framework (125 stars, last pushed 12d ago), licensed Apache-2.0. It adds 83 tokens to every session and 2,444 once invoked, about $0.0004 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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