Imported from greglas75/zuvo (skills/content-audit/SKILL.md). Install upstream with npx skills add greglas75/zuvo --skill content-audit. Copyright stays with the author.

zuvo:content-audit — Content File Quality Audit

Scan content files for encoding artifacts, broken formatting, CMS migration debris, broken links/images, and editorial quality issues. Produces a graded report (A/B/C/D) with auto-fixable findings tagged for zuvo:content-fix.

Scope: Editorial hygiene, encoding quality, CMS migration cleanup, link/image integrity, frontmatter validation. Out of scope: SEO signals (zuvo:seo-audit), code quality (zuvo:code-audit), content writing, CMS API content, PDF/Word documents.

Mandatory File Loading

Read these files before any work begins:

1. ../../shared/includes/codesift-setup.md -- CodeSift discovery and tool selection
2. ../../shared/includes/env-compat.md -- Agent dispatch and environment adaptation
3. ../../shared/includes/backlog-protocol.md -- Backlog fingerprint dedup and update
4. ../../shared/includes/content-check-registry.md -- Canonical check slugs (49 checks, CC1-CC8)
5. ../../shared/includes/audit-output-schema.md -- JSON output contract (v1.1)
6. ../../shared/includes/content-fix-registry.md -- fix_type and safety for tagging fixable findings
7. ../../shared/includes/live-probe-protocol.md -- Live URL safety rules
8. ../../shared/includes/run-logger.md -- Run logging contract
9. ../../shared/includes/retrospective.md -- Retrospective protocol
10. ../../shared/includes/verification-protocol.md -- Fresh-evidence rules

Print the checklist:

CORE FILES LOADED:
  1. codesift-setup.md          -- [READ | MISSING -> STOP]
  2. env-compat.md              -- [READ | MISSING -> STOP]
  3. backlog-protocol.md        -- [READ | MISSING -> STOP]
  4. content-check-registry.md  -- [READ | MISSING -> STOP]
  5. audit-output-schema.md     -- [READ | MISSING -> STOP]
  6. content-fix-registry.md    -- [READ | MISSING -> STOP]
  7. live-probe-protocol.md     -- [READ | MISSING -> STOP]
  8. run-logger.md              -- [READ | MISSING -> STOP]
  9. retrospective.md           -- [READ | MISSING -> STOP]
 10. verification-protocol.md   -- [READ | MISSING -> STOP]

If any file is missing, STOP.

Safety Gates (NON-NEGOTIABLE)

GATE 1 -- Live Audit Consent

Read ../../shared/includes/live-probe-protocol.md for the full consent gate, rate limiting rules, error escalation thresholds, and HTTP method restrictions. All live probing in this skill follows that shared protocol.

GATE 2 -- Read-Only Audit

This audit is read-only against source files.

Allowed write targets:

• zuvo/audits/ for the report file (.md and .json)
• memory/backlog.md only when --persist-backlog is explicitly enabled

FORBIDDEN:

• Modifying any content files
• Creating, deleting, or renaming files outside zuvo/audits/

Arguments

MANDATORY TOOL CALLS — Content Audit Validity Gate

INVALID if any tool below is skipped. "DEFERRED", "N/A" NOT valid reasons.

Forbidden: skipped/N/A — REJECTED. POSTAMBLE: report on disk → retro appended → ~/.zuvo/append-runlog exit 0. Every CC finding needs path/to/file.ext:LINE (verify-audit gate).

Mandatory-tools-acknowledgment: I will run get_file_tree + search_text + search_patterns for this content audit. Every CC finding will cite a `path/to/file.ext:LINE` resolving in the current tree.

Use the deterministic preload helper FIRST. Run ~/.zuvo/compute-preload content-audit "$PWD". Math gate enforced.

Phase 0: Discovery

0.1 Framework detection

Detect the SSG/framework from config files:

ASTRO=$(find . -maxdepth 3 -name "astro.config.*" 2>/dev/null | wc -l)
NEXT=$(find . -maxdepth 3 -name "next.config.*" 2>/dev/null | wc -l)
HUGO=$(find . -maxdepth 2 \( -name "hugo.toml" -o -name "hugo.yaml" \) 2>/dev/null | wc -l)
GATSBY=$(find . -maxdepth 3 -name "gatsby-config.*" 2>/dev/null | wc -l)

0.2 Content path auto-detection

Detection cascade (first match wins):

Override with --content-path <dir>.

If no content directory found: check for CMS config files (CONTENTFUL_SPACE_ID in .env*, sanity.config.*, strapi in package.json). If CMS detected, emit CONTENT INACCESSIBLE warning and recommend --live-url. Do NOT report all-PASS for a CMS-backed site with no local files.

0.3 Language detection

Multi-signal cascade (first definitive signal wins):

1. Frontmatter per file: lang, language, or locale field
2. Directory convention: content/pl/, content/en/, i18n/de/
3. Site config: Hugo defaultContentLanguage, Astro i18n.defaultLocale, Next.js i18n.defaultLocale
4. HTML lang attribute: <html lang="..."> in layout templates
5. Fallback: unknown — spell/typo checks (CC8) emit INSUFFICIENT DATA

Record detected language(s). Pass to agents for CC8 checks.

0.4 File manifest

Build the list of files to scan.

Include: .md, .mdx, .html (in content dirs only), .txt (content-like)

Template files: .astro, .tsx, .jsx — scan only text content between tags. Strip template interpolation ({...}, {{ }}, <% %>) before text checks.

Exclude always:

• Build output: dist/, .next/, _site/, public/ (unless it IS the content dir)
• Dependencies: node_modules/, .git/
• Binary files by extension: .jpg, .png, .gif, .webp, .avif, .svg, .pdf, .woff, .woff2, .ttf, .mp4, .mp3, .zip, .tar, .gz, .DS_Store

For each file, check encoding via file -i (available on Unix/macOS). Flag non-UTF-8 files with check encoding-mismatch (advisory).

0.5 Print discovery summary

DISCOVERY:
  Framework: [astro | hugo | nextjs | gatsby | generic]
  Content path: [path] (auto-detected | override)
  Language: [code | unknown]
  Files found: [N] content files ([M] skipped binary)
  Live mode: [enabled (url) | disabled]
  Quick mode: [yes | no]
  Profile: [blog | docs | ecommerce | marketing | default]

Phase 1: Agent Dispatch

Quick mode (--quick)

Dispatch is already authorized — do not ask, do not downgrade. Invoking this skill IS the request for every agent and gate it mandates, so a session rule about unprompted Agent use does not apply here. Only a harness with NO dispatch capability takes the documented single-agent fallback, and it still runs every gate inline — see ../../shared/includes/env-compat.md. Skipping a mandated agent and self-scoring the result is a substituted gate, not a degraded run.

Do NOT dispatch agents. Run source-only grep checks directly:

1. CC1 blocking: mojibake-detected (grep for mojibake signatures)
2. CC3 blocking: php-tag (grep for <?php, <?=)
3. CC1 scored: nbsp-present, zero-width-present
4. CC2 scored: broken-italic
5. CC3 scored: joomla-path, wp-shortcode
6. CC5 scored: img-path-broken (resolve paths via Glob)
7. CC6 scored: link-internal-broken (resolve paths via Glob)

Skipped in --quick (require agents or live access):

• CC4 entirely (frontmatter parsing requires agent)
• CC7 entirely (content analysis requires agent)
• CC8 entirely (language detection + LLM judgment)
• fm-yaml-malformed → INSUFFICIENT DATA (needs YAML parser, not grep)
• img-404-live → INSUFFICIENT DATA (needs --live-url, not grep)

Proceed to Phase 2.

Full mode (default)

Dispatch three agents in parallel per env-compat.md:

Agent A: Content Encoding
  model: sonnet
  type: Explore (read-only)
  instructions: [read agents/content-encoding.md]
  input: file manifest, detected stack, content-check-registry.md
  dimensions: CC1, CC2, CC3

Agent B: Content Links
  model: sonnet
  type: Explore (read-only)
  instructions: [read agents/content-links.md]
  input: file manifest, detected stack, live-probe-protocol.md, --live-url if set, --check-external if set
  dimensions: CC5, CC6

Agent C: Content Prose
  model: sonnet
  type: Explore (read-only)
  instructions: [read agents/content-prose.md]
  input: file manifest, detected language, content-check-registry.md
  dimensions: CC4, CC7, CC8

Cursor fallback: Execute each agent's analysis sequentially yourself.

Wait for all three agents to complete before proceeding to Phase 2.

Phase 2: Merge & Score

2.1 Collect check results

Each agent MUST return two structures:

1. check_results[] — complete matrix of ALL owned checks with status (PASS, FAIL, PARTIAL, N/A, INSUFFICIENT DATA). Every check from the registry that the agent owns appears here, even if it passed.
2. findings[] — details for FAIL and PARTIAL checks only (evidence, file:line, fix_type).

Merge check_results[] from all agents into a single matrix. Build findings[] from the FAIL/PARTIAL entries.

2.2 Deduplicate

If two agents flag the same file:line with different checks, keep both. If two agents flag the same file:line with the SAME check (shouldn't happen with proper dimension assignment), keep the one with higher confidence.

2.3 Score

Calculate per-dimension and overall scores:

dimension_score = checks_passed / checks_applicable * 100
overall_score = sum(dimension_scores) / dimensions_with_applicable_checks

Grade mapping:

Both formulas produce fractional scores, so the bands are stated as inequalities — a hyphenated 75-89 would leave 74.5 ungraded.

Blocking gate cap: If ANY blocking finding exists (mojibake-detected, php-tag, fm-yaml-malformed, img-404-live), the grade is capped at D regardless of numeric score.

2.4 Tag fixable findings

For each finding with a non-null fix_type in the registry, tag it with the fix_type and safety classification from content-fix-registry.md.

Phase 3: Report

3.1 Markdown report

Write to zuvo/audits/content-audit-YYYY-MM-DD.md. Auto-increment -2.md, -3.md for same-day runs.

CONTENT AUDIT REPORT -- [project name]
----
Grade: [A|B|C|D] ([score]%)
Files scanned: [N] | Findings: [N] total
  BLOCKING: [N]  SCORED: [N]  ADVISORY: [N]
  Auto-fixable: [N] (run zuvo:content-fix)
----

CC1 — Encoding Quality:    [PASS|PARTIAL|FAIL] ([score]%)
CC2 — Markdown Syntax:     [PASS|PARTIAL|FAIL] ([score]%)
CC3 — Migration Artifacts: [PASS|PARTIAL|FAIL] ([score]%)
CC4 — Frontmatter Quality: [PASS|PARTIAL|FAIL] ([score]%)
CC5 — Image Integrity:     [PASS|PARTIAL|FAIL] ([score]%)
CC6 — Link Integrity:      [PASS|PARTIAL|FAIL] ([score]%)
CC7 — Content Completeness:[PASS|PARTIAL|FAIL] ([score]%)
CC8 — Spelling/Typography: [PASS|PARTIAL|FAIL] ([score]%)

FINDINGS:
  F1: [CC1-mojibake-detected] content/post-1.md:42
      Evidence: "Ä…" should be "ą" (ISO-8859-2 → UTF-8 corruption)
      Fix: encoding-mojibake (MODERATE)
  F2: ...

SKIPPED FILES:
  [list of binary files skipped]

NEXT STEPS:
  1. Run zuvo:content-fix to apply [N] auto-fixable findings
  2. Review MODERATE fixes before applying with --auto
  3. Address MANUAL findings listed above

Validity Gate (REQUIRED — print BEFORE Run line, AFTER retro append + append-runlog)

VALIDITY GATE
  required_tool_calls:
    get_file_tree: [<N> | NOT_CALLED]
    search_text: [<N> | NOT_CALLED]
    search_patterns: [<N> | NOT_CALLED]
  postamble:
    retros_log_appended: [yes(bytes_added=N) | NOT_APPENDED]
    retros_md_appended: [yes(entry_count=N) | NOT_APPENDED]
    verify_audit_pass: [yes(<verified>/<total>) | NOT_RUN | REJECTED]
  gate_status: [PASS | FAIL]

If gate_status = FAIL → VERDICT = INCOMPLETE. Append the Run line via the retro-gated wrapper (NOT direct >> runs.log):

printf '%b\n' "$RUN_LINE" | ~/.zuvo/append-runlog

Run: <ISO-8601-Z>	content-audit	<project>	-	-	<VERDICT>	-	8-dim	<NOTES>	<BRANCH>	<SHA7>	<INCLUDES>	<TIER>

Retrospective (REQUIRED)

Follow the retrospective protocol from retrospective.md. Gate check → structured questions → TSV emit → markdown append. If gate check skips: print "RETRO: skipped (trivial session)" and proceed.

After printing this block, append the Run: line value (without the Run: prefix) to the log file path resolved per run-logger.md.

3.2 JSON report

Write to zuvo/audits/content-audit-YYYY-MM-DD.json conforming to audit-output-schema.md v1.1.

{
  "version": "1.1",
  "skill": "content-audit",
  "timestamp": "[ISO 8601]",
  "project": "[working directory]",
  "args": "[arguments]",
  "stack": "[detected framework]",
  "language": "[detected language or unknown]",
  "result": "PASS | FAIL | PROVISIONAL",
  "score": {
    "overall": 75,
    "tier": "B",
    "sub_scores": {
      "CC1": 85, "CC2": 71, "CC3": 100, "CC4": 83,
      "CC5": 67, "CC6": 50, "CC7": 80, "CC8": 60
    }
  },
  "critical_gates": [
    { "id": "CC1-mojibake-detected", "name": "Mojibake detection", "status": "FAIL", "evidence": "12 corrupted sequences in 4 files" },
    { "id": "CC3-php-tag", "name": "PHP tag presence", "status": "PASS", "evidence": "No PHP tags found" },
    { "id": "CC4-fm-yaml-malformed", "name": "Frontmatter YAML validity", "status": "PASS", "evidence": "All 150 files parse" },
    { "id": "CC5-img-404-live", "name": "Image live check", "status": "INSUFFICIENT DATA", "evidence": "--live-url not provided" }
  ],
  "findings": [
    {
      "id": "CC1-mojibake-detected",
      "dimension": "CC1",
      "check": "mojibake-detected",
      "status": "FAIL",
      "enforcement": "blocking",
      "severity": "HIGH",
      "confidence": "HIGH",
      "evidence": "\"Ä…\" should be \"ą\" (ISO-8859-2 corruption)",
      "file": "content/post-1.md",
      "line": 42,
      "fix_type": "encoding-mojibake",
      "fix_safety": "MODERATE",
      "fix_params": {}
    }
  ],
  "summary": {
    "files_scanned": 150,
    "files_skipped": 12,
    "findings_count": 25,
    "fixable": 18
  }
}

Use result: "PROVISIONAL" when any blocking gate returns INSUFFICIENT DATA (e.g., img-404-live without --live-url, or fm-yaml-malformed in --quick mode).

Phase 4: Adversarial Review (MANDATORY — do NOT skip)

Run AFTER report files are generated (Phase 3). Point --files at the report you just wrote — a literal [date] placeholder matches nothing and burns the pass.

# Phase 3 auto-increments (-2.md, -3.md) on same-day reruns, so take the newest
# match rather than assuming the base name.
REPORT=$(ls -t zuvo/audits/content-audit-$(date +%F)*.md 2>/dev/null | head -1)
[ -n "$REPORT" ] && ~/.zuvo/adversarial-review --mode audit --files "$REPORT" \
  || echo "adversarial: report not found — write it first"

If adversarial-review is not in PATH: ~/.zuvo/adversarial-review (stable; the versioned cache path breaks after any release)

Wait for complete output. Fix CRITICAL immediately (update report files). WARNING → fix if localized. INFO → ignore.

Phase 5: Backlog (optional)

When --persist-backlog is enabled, persist findings per shared/includes/backlog-protocol.md:

Fingerprint format: {file}|{dimension}|{check}

Edge Case Handling