Best for
- After creating a skill with utility-pm-skill-builder, before shipping
- After manually editing a skill, to confirm it still passes conventions
- Before running utility-pm-skill-iterate, to identify what needs improvement
product-on-purpose/pm-skills/skills/utility-pm-skill-validate/SKILL.md
Audits an existing pm-skills skill against structural conventions and quality criteria. Produces a structured validation report with pass/fail checks, severity-graded findings, and actionable recommendations. Use when checking whether a skill meets repo standards before shipping or after making changes.
Decision brief
This skill audits an existing pm-skills skill against the repo's structural conventions and quality criteria. It produces a validation report that a human can scan and that utility-pm-skill-iterate can consume as input.
Compatibility matrix
| Platform | Status | Evidence | What to check |
|---|---|---|---|
| Codex | Not declared | No explicit evidence | Portability before use |
| Claude Code | Not declared | No explicit evidence | Portability before use |
| Cursor | Not declared | No explicit evidence | Portability before use |
| Gemini CLI | Not declared | No explicit evidence | Portability before use |
Installation
The source command is displayed only when detected. A safe inspection prompt is always available so your agent can explain every action before execution.
npx skills add https://github.com/product-on-purpose/pm-skills --skill "skills/utility-pm-skill-validate"Inspect the Agent Skill "utility-pm-skill-validate" from https://github.com/product-on-purpose/pm-skills/blob/69df49c3eff24b3fa1a29d0bd6a35ae400af4f3e/skills/utility-pm-skill-validate/SKILL.md at commit 69df49c3eff24b3fa1a29d0bd6a35ae400af4f3e. List every install step, command, network request, credential, file read/write, external action, and rollback step. Explain whether it fits my task. Do not install or execute anything until I approve.
Workflow
When asked to validate a skill, follow these steps:
Accept the skill name in any form: - Directory name: deliver-prd - Full path: skills/deliver-prd/SKILL.md - Slash command: deliver-prd
Read all files in the skill directory:
Run these deterministic checks. Each produces a PASS or FAIL line.
Run these LLM-assessed checks. Each produces a PASS, WARN, or INFO line. Tier 2 findings are capped at WARN unless objectively grounded (placeholder leakage is the exception - it can FAIL).
Permission review
The documentation asks the agent to read local files, directories, or repositories.
Read all files in the skill directory:Evidence record
| Signal | Value | Evidence type | Meaning |
|---|---|---|---|
| Quality score | 98/100 | Computed | Documentation, specificity, maintenance, and trust rules |
| Repository stars | 565 | Source | Repository attention, not individual Skill quality |
| Compatibility | 0 platforms | Source | Declared in the catalog source record |
| Usage guide | automated source guide | Editorial | Generated or reviewed according to the visible evidence level |
Pinned source
This skill audits an existing pm-skills skill against the repo's structural
conventions and quality criteria. It produces a validation report that a
human can scan and that utility-pm-skill-iterate can consume as input.
The validator checks two tiers:
utility-pm-skill-builder, before shippingutility-pm-skill-iterate, to identify what needs improvementutility-pm-skill-builderutility-pm-skill-iterate (feed it this report)scripts/lint-skills-frontmatter.sh
(this skill is for interactive, deeper-than-CI validation)utility-pm-skill-auditor. This skill goes deep on a single skill; the auditor goes wide across the repo and aggregates cross-cutting findings.When asked to validate a skill, follow these steps:
Accept the skill name in any form:
deliver-prdskills/deliver-prd/SKILL.mddeliver-prdResolve to the canonical directory path: skills/{name}/.
If the skill directory does not exist, report immediately:
# Validation Report: {input}
Result: FAIL
Skill directory `skills/{input}/` does not exist.
Batch mode: If the input is --all, run Tier 1 structural checks
across all skills and produce a summary table (see Step 5). Do not run
Tier 2 in batch mode.
Read all files in the skill directory:
| File | Required | Purpose |
|---|---|---|
SKILL.md | yes | Frontmatter + instructions |
references/TEMPLATE.md | yes | Output template |
references/EXAMPLE.md | yes | Worked example |
HISTORY.md | no | Version history (if present) |
evals/trigger-fixtures.json | no | Routing-eval fixtures (B-4); present for roster skills |
evals/output-scenarios/*.md | no | Output-quality scenarios (B-7); present for evaled skills |
Also read:
commands/{command-name}.mdIf reading files is not possible (MCP/embedded environment), ask the user to paste the content of each file before proceeding (see Degraded Mode).
Run these deterministic checks. Each produces a PASS or FAIL line.
| Check ID | What to check | Pass condition |
|---|---|---|
frontmatter-at-byte-zero | First line of SKILL.md, references/TEMPLATE.md, references/EXAMPLE.md is exactly --- | Line 1 is the opening --- fence with no preceding HTML comment, BOM, or whitespace. Severity: FAIL. Reference: library/skill-output-samples/SAMPLE_CREATION.md Section 5. |
name-match | Frontmatter name matches directory name | Exact string match |
description-present | Frontmatter description exists | Non-empty value |
description-length | Description word count | 20-100 words |
version-present | Frontmatter version exists | Non-empty, valid SemVer |
updated-present | Frontmatter updated exists | Non-empty, ISO date |
license-present | Frontmatter license exists | Non-empty value |
phase-classification | Phase/classification consistency | Domain has phase:, foundation/utility has classification:, not both |
template-exists | references/TEMPLATE.md exists | File present |
template-sections | TEMPLATE.md has sufficient structure | ≥3 ## level-2 headers |
example-exists | references/EXAMPLE.md exists | File present |
command-exists | Command file exists in commands/ | File present and references correct skill path |
agents-entry | AGENTS.md has an entry for this skill | Entry exists with matching **Path:** |
eval-trigger-fixtures | Routing fixtures present + well-formed (B-4) | If evals/trigger-fixtures.json exists: schema:1, skill matches dir, >=16 queries, >=8 per class (trigger / no-trigger), >=2 near-misses. If absent: INFO (not in the trigger-eval roster, or fixtures not yet authored). Authoritative gate: scripts/check-trigger-fixtures.mjs. |
eval-output-scenarios | Output scenarios present + well-formed (B-7) | If evals/output-scenarios/*.md exist: each has scenario/skill/family frontmatter, skill matches dir, family maps to an existing docs/internal/eval-rubrics/{family}.md, body >=100 chars. If absent: INFO (not yet output-evaled). Authoritative gate: scripts/check-output-eval-assets.mjs. |
reciprocal-boundary-pointers | Declared collision pairs cross-point (C-5) | If the skill appears in COLLISION_PAIRS (scripts/check-trigger-fixtures.mjs): its When NOT to Use names each partner AND each partner's When NOT to Use names it back. FAIL if a declared pair is one-directional. If not in any pair: PASS. Authoritative gate: scripts/check-reciprocal-boundary-pointers.mjs. |
Run these LLM-assessed checks. Each produces a PASS, WARN, or INFO
line. Tier 2 findings are capped at WARN unless objectively grounded
(placeholder leakage is the exception - it can FAIL).
| Check ID | What to assess | How to assess | Max severity |
|---|---|---|---|
output-contract-coverage | SKILL.md references the template | Check for explicit reference to references/TEMPLATE.md or "use the template" in an Output section. Accept either pattern as valid. WARN only if template is not referenced at all. | WARN |
checklist-verifiability | Quality checklist items are testable | Read each checklist item. Flag items that are vague ("is good quality") vs. specific ("metrics are measurable"). WARN if ≥2 items are vague. | WARN |
example-completeness | EXAMPLE.md fills all template sections | Compare ## headers in TEMPLATE.md against ## headers in EXAMPLE.md. WARN if EXAMPLE.md is missing sections that appear in the template. Also check for unresolved placeholders. Line count is informational only - report it but do not gate on it. | WARN |
template-example-alignment | EXAMPLE.md follows TEMPLATE.md structure | Compare section header ordering. WARN if EXAMPLE.md has sections in a different order or uses different header names than TEMPLATE.md. | WARN |
description-actionability | Description tells when to use the skill | Check for a trigger phrase like "Use when..." or "Use for..." in the frontmatter description. WARN if the description only says what the skill does without indicating when to use it. | WARN |
instruction-clarity | Instructions are numbered and imperative | Check for ### Step headings or a numbered list pattern in the Instructions section. WARN if instructions are prose paragraphs without clear step structure. | WARN |
placeholder-leakage | No leftover scaffolding in any shipped file | Scan SKILL.md, TEMPLATE.md, and EXAMPLE.md for: [Placeholder] or [Feature Name] patterns, <!-- ... --> HTML comments (except the license header), template guidance blockquotes that should have been removed, and authoring notes like "TODO" or "FIXME". FAIL if any are found - this is objectively grounded. | FAIL |
when-not-to-use | "When NOT to Use" section present and names neighbors | Check for a When NOT to Use section that names the skill's nearest neighbors (when to use them instead). WARN if the section is absent, or present but generic (no neighbor named). This became a convention in the v2.26.0 rewrites and underpins the reciprocity gate; reciprocal-boundary-pointers (Tier 1) is the deterministic backstop for declared collision pairs. | WARN |
Quality standard framing: These checks validate against current library
conventions - what the shipped library actually does today. Findings graded
WARN or INFO represent the v2.8 quality standard that newer skills (built
with utility-pm-skill-builder) meet. Older skills may legitimately receive these
findings until iterated through the lifecycle.
Heading and dialect conventions: for the authoritative section skeleton per
dialect (classic, contract-shaped, tool-family) and the exact canon heading
spellings, see Skeleton Canon: The Three Sanctioned
Dialects
in the skill-authoring guide. A skill whose headings or section set drift from
its dialect's canon should be flagged in Recommendations even where no Tier 1
check above already covers it; scripts/check-heading-canon.mjs is the eventual
deterministic backstop, shipping advisory until the full catalog is normalized.
Assemble the report using this exact structure. F-11 (utility-pm-skill-iterate)
parses this report by section headings and pipe-delimited fields.
# Validation Report: {skill-name}
Date: {YYYY-MM-DD}
Skill version: {version from frontmatter}
Validator version: 1.0.0
Report schema: v1
Result: {PASS | WARN | FAIL}
## Summary
{1-2 sentence overall assessment.}
Errors: {n} | Warnings: {n} | Info: {n}
> Tier 2 findings are heuristic quality assessments and may require human review.
## Structural Checks
- {STATUS} | structural | {check-id} | {message}
- {STATUS} | structural | {check-id} | {message}
...
## Quality Checks
- {STATUS} | quality | {check-id} | {message}
- {STATUS} | quality | {check-id} | {message}
...
## Recommendations
1. {STATUS} | {check-id} | Target: {file-path}
Action: {what to do}
2. {STATUS} | {check-id} | Target: {file-path}
Action: {what to do}
...
Report rules:
FAIL, else any WARN → WARN, else PASS.PASS or FAIL.PASS, WARN, or INFO.Batch mode output (when input is --all):
Run Tier 1 structural checks only across all skills. Produce a summary table:
# Batch Validation Summary
Date: {YYYY-MM-DD}
Validator version: 1.0.0
Report schema: v1
Skills checked: {n}
| Skill | Result | Errors | Warnings |
|-------|--------|--------|----------|
| deliver-prd | PASS | 0 | 0 |
| define-hypothesis | WARN | 0 | 1 |
| foundation-persona | FAIL | 1 | 0 |
...
Skills passing: {n}/{total}
Run `utility-pm-skill-validate {skill}` for a detailed report.
If you cannot read skill files directly (e.g., running via MCP or in an embedded environment without file system access):
skills/{name}/SKILL.mdskills/{name}/references/TEMPLATE.mdskills/{name}/references/EXAMPLE.mdThe validator MUST produce a validation report following the format in Step 5.
The report:
## Summary, ## Structural Checks,
## Quality Checks, ## RecommendationsSTATUS | TIER | CHECK-ID | messageSTATUS | CHECK-ID | Target: path
followed by Action: description on the next lineReport schema: v1 in the header for F-11 compatibilityBefore delivering the report, verify:
eval-trigger-fixtures, eval-output-scenarios, reciprocal-boundary-pointers); absent eval assets are INFO, not FAIL, except a one-directional declared collision pair which FAILsSee references/EXAMPLE.md for a completed validation report demonstrating
both Tier 1 and Tier 2 checks against a real shipped skill.
Frequently asked questions
This skill audits an existing pm-skills skill against the repo's structural conventions and quality criteria. It produces a validation report that a human can scan and that utility-pm-skill-iterate can consume as input.
The source record exposes this install command: npx skills add https://github.com/product-on-purpose/pm-skills --skill "skills/utility-pm-skill-validate". Inspect the command and pinned source before running it.
Static rules flagged read-files in the source; the page lists the matching lines and excerpts.
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