audit

name	audit
description	Unified dual-engine audit: runs Gemini large-context analysis followed by Claude critique, synthesizing both into a scored report with per-finding acceptance criteria. Use when the user says "/audit", "audit the codebase", "audit story-NNN", or "audit <path>". Replaces both old /audit and /gemini-audit. Supports --claude-only and --gemini-only for single-engine backward compat. Supports scoping to files, directories, story diffs, or time ranges. Section filters, scoring, and all existing flags preserved.
argument-hint	[paths] [story-NNN] [section keywords] [flags]
disable-model-invocation	true

Audit Skill Invoked

User has requested: /audit $ARGUMENTS

Flow control

Continuous execution. Steps 0 through 8 execute as one uninterrupted flow. Do not pause, narrate, summarize, or ask for confirmation between steps. The only legitimate stops are:

• An error that prevents the next step from running
• The 50+ findings threshold in Step 4 (ask user whether to truncate or include all)

Everything else flows. Each step's output feeds the next -- no commentary in between.

---

Step 0: Parse arguments

Parse $ARGUMENTS into the following categories:

• paths: any token that is not a flag, not story-NNN, and not a section keyword -- collect as target paths
• story_id: token matching story-\d+ -- at most one
• section_filter: tokens matching one of: security, bugs, completeness, quality -- collect all that match. Also set by the flag variants --security, --bugs, --completeness, --quality (equivalent to bare keyword). If none specified, default = all four sections.
• flag_claude_only: present if --claude-only appears
• flag_gemini_only: present if --gemini-only appears
• flag_opus: present if --opus appears -- forces Opus model for the Claude agent
• flag_since: value after --since if present (commit ref or date like 2d, 1w, 2026-03-01)
• flag_summary: present if --summary appears -- print one-paragraph summary to stdout, skip file write
• flag_json: present if --json appears -- write structured JSON instead of markdown
• flag_output: value after --output if present
• flag_append: present if --append appears
• flag_ignore: all values after each --ignore occurrence (collect list)
• flag_no_completeness: present if --no-completeness appears
• flag_requirements: value after --requirements if present

Validation:

• If both --claude-only and --gemini-only are set, stop with error: "Cannot use both --claude-only and --gemini-only."
• If none of paths, story_id, or flag_since are provided, set full_project_mode = true.

Derive engine_mode:

• --claude-only --> engine_mode = claude-only
• --gemini-only --> engine_mode = gemini-only
• neither --> engine_mode = dual

---

Step 1: Resolve scope

1a. Identify project root

Identify the project root as the directory containing the nearest .git folder walking up from the current working directory. Store as <project-root>.

1b. Resolve target file list

Exactly one of the following applies (in priority order):

A. story_id is set:

• Call pm_get_story("<story_id>") to get the detail file, extract branch.
• If the story is not found or branch is null, stop: "story_id not found or has no branch."
• Run: git -C <project-root> diff dev...<branch> --name-only
• Collect the output lines as the target file list. If empty, stop: "No files changed in vs dev."

B. flag_since is set:

• Run: git -C <project-root> log --since="<flag_since>" --name-only --pretty=format:"" | sort -u
• Collect non-empty output lines as the target file list.
• If empty, stop: "No files changed since <flag_since>."

C. paths are set:

• Use the provided paths as the target scope.

D. No scope given (full_project_mode):

• Target scope is the full project root, respecting .gitignore and .claudeignore.

Apply ignore filters: for each glob in flag_ignore, exclude matching paths from the target list.

1c. Auto-discover requirements document

In order:

1. If flag_requirements is set, use that path. If file does not exist, stop and report.
2. Else check for <project-root>/REQUIREMENTS.md -- use if exists.
3. Else check for <project-root>/requirements.pdf -- use if exists.
4. Else set requirements_path = null and note: "No requirements document found -- completeness section will be skipped."

If flag_no_completeness is set, override requirements_path to null regardless.

---

Step 2: Gemini pass

Skip this entire step if engine_mode is claude-only.

1. Call ToolSearch with query select:mcp__gemini__audit to load the deferred tool. This step is required -- the tool is not available until loaded.

2. Invoke mcp__gemini__audit with:

   • paths = resolved target file list (or null for full project)
   • sections = section_filter list (or null for all)
   • summary_only = false
   • ignore_patterns = flag_ignore list (or null)

3. Parse the returned findings into a structured list. Each finding must have: severity, file, line, section (category), description, evidence. Tag all findings as source: "gemini".

4. Store as gemini_findings[]. If the tool returns zero findings, set gemini_findings = [] and proceed.

Never run the Gemini pass on files matching .gitignore or .claudeignore patterns.

---

Step 3: Claude pass

Skip this entire step if engine_mode is gemini-only.

3a. Build the Claude audit prompt

1. Start with the base text from ~/.claude/AUDIT-PROMPT.md (read that file verbatim).

2. Append the Scope section (always):

   ## Audit Scope
   <one of the following>
   - Full project: <project-root>
   - Target files/directories: <comma-separated list>
   - Story diff (<branch> vs dev): <file list>
   - Files changed since <flag_since>: <file list>
   
   Ignored patterns: <flag_ignore list, or "none">
   

3. Append Requirements section if requirements_path is not null:

   ## Requirements Document
   Path: <requirements_path>
   Read this file as the source of truth for the Completeness section.
   

4. Append Section filter if section_filter is set:

   ## Section Filter
   Only produce the following section(s) of the report: <section_filter list>.
   Omit all other sections from the output.
   

5. If engine_mode is dual, append a Gemini Findings for Review section:

   ## Gemini Findings for Review
   The following findings were produced by Gemini's large-context analysis.
   For EACH finding, you must:
   1. **Confirm** -- the finding is valid, keep severity as-is
   2. **Downgrade** -- the finding is valid but severity is too high, state new severity with one-line reasoning
   3. **Reject** -- the finding is not a real issue, state one-line rejection reasoning
   
   Additionally, identify any issues Gemini MISSED that you find in the scoped files.
   
   <list each gemini finding with its ID, severity, file:line, category, description, evidence>
   

6. If engine_mode is claude-only, append standard audit instructions -- the Claude agent performs a full independent audit with no Gemini context.

7. Append output format instructions: instruct the agent to return findings as a structured list with: id, severity, section, file, line, description, evidence, and for each Gemini finding: verdict (confirm/downgrade/reject) and reasoning.

3b. Launch the Claude audit agent

• Model selection: use sonnet by default. Use opus if flag_opus is set.
• Launch a foreground general-purpose subagent with the composed prompt. Wait for completion.

3c. Parse agent output

Parse the agent's response into:

• claude_confirmations[] -- Gemini findings confirmed (with possible severity changes)
• claude_rejections[] -- Gemini findings rejected (with rejection reasoning)
• claude_new_findings[] -- issues Claude found independently, tagged source: "claude"

---

Step 4: Synthesis

Merge findings from both passes into a single list.

4a. Merge by engine mode

Dual mode:

• For each Gemini finding that Claude confirmed at original severity: add to confirmed_findings[], tag source: "both".
• For each Gemini finding that Claude confirmed with downgraded severity: add to confirmed_findings[] with new severity, tag source: "both", note "downgraded from X to Y".
• For each Gemini finding that Claude rejected: add to rejected_findings[] with rejection reasoning.
• For each Claude-only new finding: add to confirmed_findings[], tag source: "claude".

Gemini-only mode:

• All gemini_findings[] go directly to confirmed_findings[], tagged source: "gemini". No rejections.

Claude-only mode:

• All Claude findings go to confirmed_findings[], tagged source: "claude". No Gemini findings exist.

4b. Deduplication

If both engines independently flag the same file:line with the same category (section), merge into one finding tagged source: "both". Keep the higher severity. Use the more detailed description.

4c. Assign IDs

Number all confirmed findings sequentially: F-001, F-002, etc.

4d. Generate per-finding acceptance criteria

For every confirmed finding, write a testable Given/When/Then statement. The acceptance criterion describes the correct behavior, NOT the fix implementation.

Example: "Given a user submits a form with XSS payload in the name field, when the server processes the input, then the payload is sanitized before storage."

4e. 50+ findings gate

If confirmed_findings[] exceeds 50 entries, ask the user:

"Found N findings. Include all in the report, or truncate to top 50 by severity?"

Wait for response before proceeding. This is the only legitimate pause in the flow.

---

Step 5: Scoring

5a. Severity values

Severity	Value
critical	4
high	3
medium	2
low	1

5b. Section weights

Section	Weight
security	4x
bugs	3x
completeness	2x
quality	1x

5c. Compute score

For each confirmed finding: deduction = severity_value * section_weight.

score = 100 - sum(all deductions), floored at 0. Perfect score (no findings) = 100.

5d. Build score breakdown table

Section	Finding count	Weight	Weighted deduction	Raw deduction
Security	N	4x	sum of (severity * 4) for security findings	sum of severity for security findings
Bugs	N	3x	sum of (severity * 3) for bugs findings	sum of severity for bugs findings
Completeness	N	2x	sum of (severity * 2) for completeness findings	sum of severity for completeness findings
Quality	N	1x	sum of (severity * 1) for quality findings	sum of severity for quality findings
Total	N		total weighted	total raw

Final score line: Score: <score>/100

---

Step 6: Report generation

Mode A: --summary

If flag_summary is set:

Print a one-paragraph executive summary to stdout containing: what was audited, engine_mode, finding count by severity, score. No file write.

Print completion summary (Step 8 format) and stop.

Mode B: --json

If flag_json is set:

Write a JSON file to flag_output path (or <project-root>/AUDIT.json). Schema:

{
  "metadata": {
    "scope": "...",
    "engine_mode": "dual|claude-only|gemini-only",
    "sections_run": ["..."],
    "timestamp": "ISO8601"
  },
  "score": {
    "total": 0,
    "breakdown": [
      {
        "section": "...",
        "finding_count": 0,
        "weight": 0,
        "weighted_deduction": 0,
        "raw_deduction": 0
      }
    ]
  },
  "findings": [
    {
      "id": "F-001",
      "severity": "...",
      "section": "...",
      "file": "...",
      "line": 0,
      "description": "...",
      "evidence": "...",
      "source": "gemini|claude|both",
      "acceptance_criterion": "Given... When... Then..."
    }
  ],
  "rejected_findings": [
    {
      "id": "...",
      "severity": "...",
      "section": "...",
      "file": "...",
      "line": 0,
      "description": "...",
      "source": "gemini",
      "rejection_reason": "..."
    }
  ],
  "executive_summary": "..."
}

Proceed to Step 7.

Mode C: Default markdown (AUDIT.md)

Determine output_path: flag_output value, or <project-root>/AUDIT.md.

If flag_append: read existing file first, append new findings without duplicating existing ones.

Write (or append) the report with this structure:

1. Executive summary -- 1 paragraph: what was audited, engine_mode used, finding count by severity, overall score.

2. Score breakdown -- the table from Step 5.

3. Findings by section -- one heading each for Security, Bugs, Completeness, Quality (only sections that were run). Within each section, list findings ordered by severity (critical first). Each finding includes:

   • Severity badge: **CRITICAL**, **HIGH**, **MEDIUM**, or **LOW**
   • File:line reference
   • Description
   • Evidence (code snippet in a fenced code block)
   • Source tag: [gemini], [claude], or [both]
   • Acceptance criterion: > Given... When... Then...

4. Appendix: Rejected findings -- list each rejected Gemini finding with its severity, file:line, description, and Claude's rejection reasoning. If no rejected findings, omit this section entirely.

Security constraint: never expose secrets or credentials found during audit in the report. Redact and note existence only.

Never modify any project files during an audit. The audit reports findings -- it does not apply fixes.

Proceed to Step 7.

---

Step 7: Cross-reference and story offers

7a. Cross-reference with open stories

1. Call pm_list_stories(), filter to stories where state is not done, shipped, or archived. Build:

   open_story_map = { story_id: { title, writeFiles[] } }
   

2. For each confirmed finding referencing a file path, check if any open story's writeFiles overlaps. If so, annotate the finding: Related open story: story-NNN -- <title>.

3. If annotations were added to the markdown report, write the updated report back to output_path.

7b. Offer story creation

Scan confirmed findings with severity critical or high that have no related open story.

If any exist, list them and ask:

"The following High/Critical priority findings are not covered by any open story. Create a /todo story for each? (yes / no / list the ones you want)"

If user approves, invoke /todo for each selected finding.

---

Step 8: Completion summary and telemetry

8a. Telemetry

Emit telemetry event:

bash scripts/emit-event.sh audit '{"engine_mode":"<engine_mode>","finding_count":<N>,"score":<score>}'

8b. Print completion summary

Audit complete.
Engine: <dual|claude-only|gemini-only>
Report: <output_path>
Score: <score>/100
Findings: <N> Critical, <N> High, <N> Medium, <N> Low
Rejected: <N> (see Appendix)
<if stories created>: Stories created: story-NNN, ...

---

Output policy

• The audit skill reads and analyzes code. It never modifies project source files.
• Secrets or credentials discovered during audit are redacted in the report -- note existence only, never include the value.
• Files matching .gitignore or .claudeignore patterns are excluded from both Gemini and Claude passes.
• The report file (AUDIT.md, AUDIT.json) is the only file written by this skill.