- name
- skill-cslib-vet
- description
- Vet completed CSLib tasks against library standards. Invoke for /vet command.
- allowed-tools
- Agent, AskUserQuestion, Bash, Edit, Read, Write
# CSLib Vet Skill
Thin wrapper that validates CSLib task inputs, identifies changed Lean files via git history,
prepares delegation context, and delegates vetting to `cslib-vet-agent` subagent. The agent
reads changed files, runs the CI pipeline, checks against all four standards documents, and
creates fix tasks interactively.
## Trigger Conditions
This skill activates when:
- `/vet` command is invoked with task numbers
- CSLib tasks need to be vetted against contribution standards
- Quality gate check before a PR submission
## Execution Flow
### Stage 1: Input Validation
Validate that task numbers exist in state.json:
```bash
cd /home/benjamin/Projects/cslib
for task_num in $TASK_NUMBERS; do
task_entry=$(jq --argjson num "$task_num" \
'.active_projects[] | select(.project_number == $num)' \
specs/state.json 2>/dev/null)
if [ -z "$task_entry" ]; then
echo "Error: Task $task_num not found in specs/state.json"
# Return failed status
fi
task_name=$(echo "$task_entry" | jq -r '.project_name')
task_type=$(echo "$task_entry" | jq -r '.task_type')
task_status=$(echo "$task_entry" | jq -r '.status')
echo "Task $task_num: $task_name (type=$task_type, status=$task_status)"
done
```
### Stage 2: Preflight
Generate a session ID if not passed from the command:
```bash
source .claude/scripts/lib/common.sh
session_id="${session_id:-$(common_session_id)}"
```
**Note**: The vet skill does NOT change task status. Vetting is orthogonal to the task
lifecycle (`not_started` -> `researching` -> `researched` -> `planned` -> `implementing`
-> `pr_ready` -> `completed`). Vet operates on tasks in ANY status.
### Stage 2b: Identify Changed Files
For each task number, identify Lean files changed by that task using git history:
```bash
cd /home/benjamin/Projects/cslib
CHANGED_FILES_MAP="{}"
for task_num in $TASK_NUMBERS; do
echo "Finding files changed by task $task_num..."
# Primary: git history via commit messages matching "task N:"
lean_files=$(git log --all --format="%H" --grep="task ${task_num}:" \
| xargs -I{} git show --name-only --format="" {} \
| grep "^Cslib/" \
| sort -u 2>/dev/null)
# Fallback: uncommitted changes if no commits found
if [ -z "$lean_files" ]; then
echo " No commits found for task $task_num — checking uncommitted changes..."
lean_files=$(git diff --name-only HEAD -- Cslib/ 2>/dev/null)
if [ -z "$lean_files" ]; then
lean_files=$(git diff --cached --name-only -- Cslib/ 2>/dev/null)
fi
if [ -z "$lean_files" ]; then
lean_files=$(git status --porcelain -- Cslib/ 2>/dev/null | awk '{print $2}' | grep "^Cslib/")
fi
fi
if [ -z "$lean_files" ]; then
echo " Warning: No Lean files found for task $task_num (no commits matching 'task ${task_num}:' and no uncommitted changes)."
else
file_count=$(echo "$lean_files" | grep -c "." 2>/dev/null || echo 0)
echo " Found $file_count Lean file(s) for task $task_num"
echo "$lean_files" | while read -r f; do
echo " - $f"
done
fi
# Store as newline-separated list per task
CHANGED_FILES_MAP="${CHANGED_FILES_MAP}|${task_num}:${lean_files}"
done
```
### Stage 3: Prepare Delegation Context
Build the delegation context for `cslib-vet-agent`:
```json
{
"session_id": "{session_id}",
"delegation_depth": 1,
"delegation_path": ["orchestrator", "vet", "skill-cslib-vet"],
"timeout": 3600,
"task_context": {
"task_numbers": [{task_numbers_array}],
"task_names": [{task_names_array}],
"task_types": [{task_types_array}]
},
"changed_files": {
"{task_num_1}": ["{file_1}", "{file_2}"],
"{task_num_2}": ["{file_3}"]
},
"focus_prompt": "{optional focus from user}",
"cslib_dir": "/home/benjamin/Projects/cslib",
"standards_paths": {
"contributing": "CONTRIBUTING.md",
"notation": "NOTATION.md",
"organisation": "ORGANISATION.md",
"code_of_conduct": "CODE_OF_CONDUCT.md"
},
"metadata_file_path": "specs/270_create_vet_command_skill_agent/.return-meta.json"
}
```
**Note on metadata_file_path**: Use the actual task directory for the vetted tasks. For the
vet operation itself, the metadata path should be `specs/{NNN}_{SLUG}/.return-meta.json` where
`NNN`/`SLUG` refer to the vet invocation context (if any). Since `/vet` is a standalone command
(not tied to a specific task number), the agent writes metadata to the cslib-vet-agent's own
working directory. The skill should set this to a temp path under `.claude/tmp/` or use the
first task's directory:
```bash
# Use the first task's directory as the metadata home for this vet run
first_task_num=$(echo "$TASK_NUMBERS" | awk '{print $1}')
task_name=$(jq -r --argjson num "$first_task_num" \
'.active_projects[] | select(.project_number == $num) | .project_name' \
/home/benjamin/Projects/cslib/specs/state.json)
task_num_padded=$(printf '%03d' "$first_task_num")
task_dir="/home/benjamin/Projects/cslib/specs/${task_num_padded}_${task_name}"
mkdir -p "$task_dir"
metadata_file_path="specs/${task_num_padded}_${task_name}/.vet-meta.json"
```
### Stage 4: Invoke Subagent
Use Agent tool with `subagent_type: "cslib-vet-agent"` and pass the delegation context
as a JSON string in the prompt. The agent will:
1. Read all changed Lean files
2. Read the four standards documents
3. Run the CSLib CI pipeline
4. Analyze files against all standards
5. Present violations to the user interactively
6. Create fix tasks for user-selected violations
7. Write final metadata to the metadata_file_path
### Stage 4b: Self-Execution Fallback
**CRITICAL**: If you performed the work above WITHOUT using the Agent tool (i.e., you read
files, analyzed violations, or created tasks directly instead of spawning a subagent), you
MUST write a `.return-meta.json` file now before proceeding to postflight. Use the appropriate
status value.
If you DID use the Agent tool, skip this stage — the subagent already wrote the metadata.
## Postflight (ALWAYS EXECUTE)
The following stages MUST execute after work is complete, whether done by a subagent or inline.
Do NOT skip these stages for any reason.
### Stage 5: Parse Subagent Return and Read Findings
Read the metadata and findings files from the paths set in Stage 3:
```bash
if [ -f "$task_dir/.vet-meta.json" ]; then
return_status=$(jq -r '.status' "$task_dir/.vet-meta.json" 2>/dev/null)
violations_found=$(jq -r '.violations_found // 0' "$task_dir/.vet-meta.json" 2>/dev/null)
files_analyzed=$(jq -r '.files_analyzed // 0' "$task_dir/.vet-meta.json" 2>/dev/null)
ci_passed=$(jq -r '.ci_passed // false' "$task_dir/.vet-meta.json" 2>/dev/null)
summary=$(jq -r '.summary // "Vet completed"' "$task_dir/.vet-meta.json" 2>/dev/null)
echo "Vet status: $return_status"
echo "Violations found: $violations_found"
else
echo "Warning: Metadata file not found at $task_dir/.vet-meta.json"
return_status="partial"
fi
```
Read the findings file written by the agent:
```bash
findings_file="$task_dir/.vet-findings.json"
if [ -f "$findings_file" ]; then
echo "Findings file found at $findings_file"
# Read using the Read tool for structured access
else
echo "Warning: Findings file not found — agent may have been interrupted"
# Skip interactive stages, go to Stage 9
fi
```
If no violations were found (`violations_found == 0`), display:
```
Vet complete: No violations found. CI pipeline PASSED.
```
Skip to Stage 9.
### Stage 6: Present Violations to User
**Use AskUserQuestion** to present the categorized violations and let the user select which
categories should become fix tasks.
First, display a summary of findings:
```
Vet Results for Task(s) {task_numbers}
=======================================
Files analyzed: {count}
CI pipeline: {PASSED/FAILED}
Violations Found: {total} total
Critical: {N}
High: {N}
Medium: {N}
Low: {N}
```
Then use `AskUserQuestion` with `multiSelect: true`. Build options dynamically from the
`categories` array in `.vet-findings.json`. Only include categories that have at least one
violation:
```json
{
"question": "Which violation categories should become fix tasks?",
"header": "Fix",
"multiSelect": true,
"options": [
{
"label": "{category_name} ({severity}) -- {N} issue(s)",
"description": "{brief description of violations in this category}"
}
]
}
```
Always include a final option:
```json
{
"label": "No fix tasks needed",
"description": "Accept current state without creating fix tasks"
}
```
If the user selects "No fix tasks needed" or selects nothing:
- Display: "Vet complete. No fix tasks created."
- Skip to Stage 9.
If the user selects one or more categories, **IMMEDIATELY CONTINUE** to Stage 7.
### Stage 7: Confirm Fix Task Creation
Read the `suggested_fix_tasks` from `.vet-findings.json`. Filter to only those whose violations
belong to user-selected categories. Present the proposed fix tasks:
```
Proposed Fix Tasks
==================
{N} fix task(s) will be created:
| # | Title | Type | Severity | Violations |
|---|-------|------|----------|------------|
| 1 | {task_1_title} | cslib | {severity} | {N} |
```
**Use AskUserQuestion** (single-select) for final confirmation:
```json
{
"question": "Create these {N} fix task(s) in state.json?",
"header": "Confirm",
"multiSelect": false,
"options": [
{
"label": "Yes, create tasks",
"description": "Create {N} cslib fix task(s) and add to TODO.md"
},
{
"label": "Revise -- go back to selection",
"description": "Return to Stage 6 to modify which categories to fix"
},
{
"label": "Cancel -- no tasks",
"description": "Exit without creating any fix tasks"
}
]
}
```
- **Yes**: **IMMEDIATELY CONTINUE** to Stage 8
- **Revise**: Return to Stage 6 (re-present the multiSelect picker)
- **Cancel**: Skip to Stage 9
### Stage 8: Create Fix Tasks
For each confirmed fix task from the filtered `suggested_fix_tasks`, create an entry in
state.json:
```bash
cd /home/benjamin/Projects/cslib
now=$(date -u +%Y-%m-%dT%H:%M:%SZ)
# For each fix task:
next_num=$(jq '.next_project_number' specs/state.json)
# One state-write.sh call: the next_project_number bump and the active_projects prepend
# are applied under a single mutex acquisition, so concurrent creators cannot collide on
# the same number.
bash .claude/scripts/state-write.sh \
'.next_project_number = ($next_num + 1) |
.active_projects = [{
project_number: $next_num,
project_name: $slug,
status: "not_started",
task_type: $tt,
title: $title,
description: $desc,
created: $now,
last_updated: $now,
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