skill-quality-auditor

README

skill-quality-auditor

A 9-dimension scoring framework for auditing and improving AI skill quality. Combines structural validation with custom scoring across Knowledge Delta, Mindset, Anti-Patterns, Specification Compliance, Progressive Disclosure, Freedom Calibration, Pattern Recognition, Practical Usability, and Eval Validation.

• What it scores & why
• Dimension docs
• Install
• Command Usage
• Flag Shorthands
• Output Formats
• CI Integration
• Repository layout
• Development

---

What it scores & why

ID	Dimension	Max	What a low score signals
D1	Knowledge Delta	20	Content restates what the model already knows — no expert uplift
D2	Mindset & Procedures	15	Missing mental models or step-by-step guidance the agent needs
D3	Anti-Pattern Coverage	15	Common failure modes not called out — agent will repeat them
D4	Specification Compliance	15	Frontmatter, structure, or naming deviates from the tile spec
D5	Progressive Disclosure	15	Detail is front-loaded; references not used for depth
D6	Freedom Calibration	15	Skill is either too prescriptive or too vague for the task
D7	Pattern Recognition	10	No trigger conditions — agent won't know when to activate the skill
D8	Practical Usability	15	Examples absent or unrealistic; hard to apply in practice
D9	Eval Validation	20	No evals — quality claims are unverifiable

Total: 140 pts. Grade bands:

Grade	Score
A+	≥ 133
A	≥ 126
B+	≥ 119
B	≥ 112
C+	≥ 105
C	≥ 98
D	≥ 91
F	< 91

See cmd/assets/references/quality-thresholds-scoring.md for the full rubric and per-dimension scoring criteria.

---

Dimension docs

Each dimension has a dedicated doc with scoring criteria, examples, and academic references:

Dimension	Doc
D1 Knowledge Delta	docs/d1-knowledge-delta.md
D2 Mindset & Procedures	docs/d2-mindset-procedures.md
D3 Anti-Pattern Coverage	docs/d3-anti-pattern-coverage.md
D4 Specification Compliance	docs/d4-specification-compliance.md
D5 Progressive Disclosure	docs/d5-progressive-disclosure.md
D6 Freedom Calibration	docs/d6-freedom-calibration.md
D7 Pattern Recognition	docs/d7-pattern-recognition.md
D8 Practical Usability	docs/d8-practical-usability.md
D9 Eval Validation	docs/d9-eval-validation.md

---

Install

install.sh (Linux / macOS)

curl -fsSL https://raw.githubusercontent.com/pantheon-org/skill-quality-auditor/main/scripts/install.sh | sh

Override install directory or pin a version:

INSTALL_DIR=~/.local/bin curl -fsSL ... | sh
VERSION=v1.2.3 curl -fsSL ... | sh

mise

mise use github:pantheon-org/skill-quality-auditor

Or in mise.toml:

[tools]
"github:pantheon-org/skill-quality-auditor" = "latest"

Go install

go install github.com/pantheon-org/skill-quality-auditor@latest

Updating

Method	Command
install.sh	skill-auditor update
mise	mise upgrade skill-auditor
Go install	go install github.com/pantheon-org/skill-quality-auditor@latest

skill-auditor update also accepts --check (report without installing) and --version-target vX.Y.Z.

---

Command Usage

Stage	Command	What it answers
Score a skill	evaluate	What is the overall quality grade and per-dimension breakdown?
Score many skills	batch	How do multiple skills compare, and does any fall below a CI threshold?
Find overlap	duplication	Are any skills too similar to each other?
Plan consolidation	aggregate	How should a family of similar skills be merged?
Fix a skill	remediate	What specific changes would raise this skill's score?
Track progress	trend	Are scores improving or regressing over time?
Validate format	validate	Do artifacts conform to conventions? Does a review report meet spec?
Deep analysis	analyze	What are the keyword signals and structural patterns in this skill?
Install skill	init	How do I install this auditor skill into my agent environment?
Self-update	update	Is a newer release available, and can I install it in place?
Housekeeping	prune	Which old audit snapshots can be removed?

evaluate

skill-auditor evaluate <skill> [flags]

Flags:
  -m, --markdown    emit Markdown output (default: JSON)
  -s, --store       persist result to .context/audits/
  -r, --repo-root   repo root directory (auto-detected from .git / go.mod if omitted)

<skill> accepts a domain/skill-name key (resolved under <repo-root>/skills/), a directory containing SKILL.md, or a direct path to SKILL.md.

batch

skill-auditor batch <skill1> [skill2 ...] [flags]

Flags:
  -j, --json        emit JSON array output
  -m, --markdown    emit Markdown table output
  -s, --store       persist each result to .context/audits/
  -F, --fail-below  exit 1 if any skill scores below this grade (e.g. B+)
  -r, --repo-root   repo root directory (auto-detected if omitted)

duplication

skill-auditor duplication [skills-dir] [flags]

Flags:
  -j, --json        emit JSON array of pairs
  -m, --markdown    emit Markdown output (default)
  -s, --store       persist report to .context/analysis/
  -d, --skills-dir  skills directory (default: <repo-root>/skills)
  -r, --repo-root   repo root directory (auto-detected if omitted)

Pairwise word-level Jaccard similarity across all SKILL.md files. Writes duplication-report-YYYY-MM-DD.md to .context/analysis/. Exits with code 2 on any Critical (>35%) pair — suitable as a CI gate.

aggregate

skill-auditor aggregate --family <prefix> [skills-dir] [flags]

Flags:
  -j, --json        emit JSON output instead of Markdown
  -n, --dry-run     print plan to stdout without writing to disk
  -f, --family      skill family prefix to analyse (required, e.g. bdd, typescript)
  -d, --skills-dir  skills directory (default: <repo-root>/skills)
  -r, --repo-root   repo root directory (auto-detected if omitted)

Produces a 6-step consolidation plan at .context/analysis/aggregation-plan-<family>-YYYY-MM-DD.md.

remediate

skill-auditor remediate <skill> [flags]

Flags:
  -j, --json          emit the plan as JSON instead of Markdown
  -n, --dry-run       print plan to stdout without writing to .context/plans/
  -t, --target-score  desired total score (default: current + 20, max 140)
  -v, --validate      validate an existing plan file instead of generating one
  -r, --repo-root     repo root directory (auto-detected if omitted)

Reads the most recent stored audit for <skill> and generates a schema-compliant remediation plan at .context/plans/<skill>-remediation-plan.md. Use --validate to check an existing plan against remediation-plan.schema.json.

trend

skill-auditor trend [flags]

Flags:
  -j, --json       emit JSON array output
  -m, --markdown   emit Markdown table output (default)
  -s, --store      persist report to .context/audits/
  -r, --repo-root  repo root directory (auto-detected if omitted)

Reads the two most recent stored audits per skill from .context/audits/ and prints a score-delta table with ↑ / ↓ / — indicators.

validate

skill-auditor validate artifacts [paths...] [flags]
skill-auditor validate review <file> [flags]

Flags (artifacts):
  -r, --repo-root              repo root directory (auto-detected if omitted)

Flags (review):
  -S, --strict-recommended     treat recommended fields as errors
  -r, --repo-root              repo root directory (auto-detected if omitted)

validate artifacts checks SKILL.md line limits, frontmatter name match, asset subdirectory conventions, script shebangs, and schema file validity. validate review checks a review report against the embedded requirements spec. Exit code 1 on any error.

analyze

skill-auditor analyze <skill> [flags]

Flags:
  -e, --semantic    run TF-IDF keyword extraction only
  -p, --patterns    run rule-based pattern detection only
  -P, --pipeline    run full pipeline — semantic + patterns + combined report (default)
  -j, --json        emit JSON output (default)
  -m, --markdown    emit Markdown output instead of JSON
  -s, --store       write report to .context/analysis/
  -l, --limit int   max keywords to include (default 20)
  -r, --repo-root   repo root directory (auto-detected if omitted)

--semantic extracts TF-IDF top keywords scored against the full skill corpus. --patterns runs rule-based detectors for required sections, trigger-word frequency, structural conformance, and anti-pattern signals. Default --pipeline runs both and writes a combined report.

init

skill-auditor init [flags]

Flags:
  -n, --dry-run   preview what would be created without touching disk
  -a, --agent     agent(s) to install into (default: auto-detect from installed environments)
  -g, --global    install to global skill directory (~/<agent>/skills/)
  -m, --method    installation method: symlink or copy (default: symlink)

Installs the embedded skill-quality-auditor SKILL.md and its references/ directory into one or more agent skill directories. Auto-detects supported environments (Claude Code, Cursor, etc.) when --agent is omitted.

update

skill-auditor update [flags]

Flags:
  --check           report the latest version without installing
  --version-target  install a specific version (e.g. v1.2.3)

Fetches the latest release from GitHub and replaces the running binary in-place. Only applicable when installed via install.sh — Homebrew and mise users should use their own update commands.

prune

skill-auditor prune [flags]

Flags:
  -n, --dry-run    list audit runs that would be removed without deleting anything
  -k, --keep       number of audit date-dirs to retain per skill (default 5)
  -r, --repo-root  repo root directory (auto-detected if omitted)

Removes old date-stamped audit directories from .context/audits/, keeping the N most recent per skill.

---

Flag Shorthands

All flags are available via long form and a one-letter shorthand:

Flag	Short	Commands
--json	-j	analyze, batch, duplication, trend, remediate, aggregate
--markdown	-m	evaluate, analyze, batch, duplication, trend
--store	-s	evaluate, analyze, batch, duplication, trend
--repo-root	-r	evaluate, analyze, batch, duplication, trend, remediate, aggregate, prune, validate
--dry-run	-n	aggregate, remediate, prune, init
--skills-dir	-d	aggregate, duplication
--family	-f	aggregate
--fail-below	-F	batch
--target-score	-t	remediate
--validate	-v	remediate
--keep	-k	prune
--limit	-l	analyze
--strict-recommended	-S	validate review
--global	-g	init
--agent	-a	init
--method	-m	init

--json and --markdown are mutually exclusive. When neither is passed, commands default to their natural format (JSON for evaluate, analyze, batch, remediate, aggregate; Markdown for duplication, trend).

---

Output Formats

All commands that produce structured data support --json / -j and --markdown / -m. The two flags are mutually exclusive — pass at most one. When neither is given, each command uses its own default format (noted in the per-command flag tables above).

JSON output — pass --json to any command:

skill-auditor evaluate skills/my-skill         # JSON (default)
skill-auditor evaluate skills/my-skill -m      # Markdown
skill-auditor batch skills/skill-a skills/skill-b --json
skill-auditor trend --json

Stored output — pass --store to persist results for later use by remediate and trend:

Command	Output path
evaluate --store / batch --store	.context/audits/<skill>/<date>/
duplication	.context/analysis/duplication-report-YYYY-MM-DD.md
aggregate	.context/analysis/aggregation-plan-<family>-YYYY-MM-DD.md
remediate	.context/plans/<skill>-remediation-plan.md
analyze --store	.context/analysis/pattern-report-<skill>-YYYY-MM-DD.md

---

CI Integration

- name: Audit skills
  run: |
    skill-auditor batch skills/ --fail-below B --store
    skill-auditor duplication   # exits 2 on Critical pairs
    skill-auditor validate artifacts

--fail-below accepts any grade: A+, A, B+, B, C+, C, D, F.

duplication exits with code 2 (not 1) on Critical pairs so it can be distinguished from a command error in pipeline logic.

Full workflow example:

jobs:
  skill-quality:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install skill-auditor
        run: curl -fsSL https://raw.githubusercontent.com/pantheon-org/skill-quality-auditor/main/scripts/install.sh | sh

      - name: Batch audit (fail below B)
        run: skill-auditor batch skills/ --fail-below B --store

      - name: Duplication check
        run: skill-auditor duplication
        continue-on-error: false   # exits 2 on Critical pairs

      - name: Artifact validation
        run: skill-auditor validate artifacts

---

Repository layout

go.mod / main.go      Go CLI root — build and run from here
cmd/                  cobra commands: evaluate, batch, duplication, aggregate,
                      remediate, trend, validate, prune, analyze, init, update
cmd/assets/           Tessl tile — SKILL.md, tile.json, evals, references,
                      schemas, templates (single source of truth)
agents/               agent registry (supported environments for init)
docs/                 per-dimension documentation with scoring criteria and references
scorer/               D1–D9 dimension scorers
analysis/             TF-IDF keyword extractor + rule-based pattern detectors
duplication/          word-level Jaccard similarity engine
internal/             shared utilities (tokenizer)
reporter/             text/JSON formatters, audit store, report generators
scripts/              install.sh
testdata/             fixture skills for unit tests

---

Development

go test ./...
go vet ./...
golangci-lint run ./...
shellcheck scripts/install.sh

Pre-commit and pre-push hooks are managed via lefthook:

mise install   # installs go, golangci-lint, mdlint, shellcheck, lefthook
lefthook install