skill-nix-research

# Nix Research Skill Thin wrapper that delegates Nix research to `nix-research-agent` subagent. **IMPORTANT**: This skill implements the skill-internal postflight pattern. After the subagent returns, this skill handles all postflight operations (status update, artifact linking, git commit) before returning. ## Context References Reference (do not load eagerly): - Path: `.opencode/context/core/formats/return-metadata-file.md` - Metadata file schema - Path: `.opencode/context/core/patterns/postflight-control.md` - Marker file protocol - Path: `.opencode/context/core/patterns/jq-escaping-workarounds.md` - jq escaping patterns ## Trigger Conditions This skill activates when: - Task language is "nix" - Research is needed for Nix, NixOS, or Home Manager configuration - Package definitions or module patterns need to be gathered --- ## Execution Flow ### Stage 1: Input Validation Validate required inputs: - `task_number` - Must be provided and exist in state.json - `focus_prompt` - Optional focus for research direction ```bash # Lookup task task_data=$(jq -r --argjson num "$task_number" \ '.active_projects[] | select(.project_number == $num)' \ specs/state.json) # Validate exists if [ -z "$task_data" ]; then return error "Task $task_number not found" fi # Extract fields language=$(echo "$task_data" | jq -r '.language // "nix"') status=$(echo "$task_data" | jq -r '.status') project_name=$(echo "$task_data" | jq -r '.project_name') description=$(echo "$task_data" | jq -r '.description // ""') ``` --- ### Stage 2: Preflight Status Update Update task status to "researching" BEFORE invoking subagent. ```bash bash .opencode/scripts/update-task-status.sh preflight "$task_number" research "$session_id" ``` --- ### Stage 3: Create Postflight Marker ```bash mkdir -p "specs/OC_${padded_num}_${project_name}" cat > "specs/OC_${padded_num}_${project_name}/.postflight-pending" << EOF { "session_id": "${session_id}", "skill": "skill-nix-research", "task_number": ${task_number}, "operation": "research", "reason": "Postflight pending: status update, artifact linking, git commit", "created": "$(date -u +%Y-%m-%dT%H:%M:%SZ)" } EOF ``` --- ### Stage 4: Prepare Delegation Context ```json { "session_id": "sess_{timestamp}_{random}", "delegation_depth": 1, "delegation_path": ["orchestrator", "research", "skill-nix-research"], "timeout": 3600, "task_context": { "task_number": N, "task_name": "{project_name}", "description": "{description}", "language": "nix" }, "focus_prompt": "{optional focus}", "metadata_file_path": "specs/OC_{NNN}_{SLUG}/.return-meta.json" } ``` --- ### Stage 5: Invoke Subagent **CRITICAL**: You MUST use the **Task** tool to spawn the subagent. ``` Tool: Task (NOT Skill) Parameters: - subagent_type: "nix-research-agent" - prompt: [Include task_context, delegation_context, focus_prompt, metadata_file_path] - description: "Execute Nix research for task {N}" ``` The subagent will: - Search local Nix configuration using Read, Grep, Glob - Search web for NixOS/Home Manager documentation - Query MCP-NixOS for package/option information (if available) - Analyze findings and synthesize recommendations - Create research report - Write metadata file - Return brief text summary --- ### Stage 6: Parse Subagent Return ```bash metadata_file="specs/OC_${padded_num}_${project_name}/.return-meta.json" if [ -f "$metadata_file" ] && jq empty "$metadata_file" 2>/dev/null; then status=$(jq -r '.status' "$metadata_file") artifact_path=$(jq -r '.artifacts[0].path // ""' "$metadata_file") artifact_type=$(jq -r '.artifacts[0].type // ""' "$metadata_file") artifact_summary=$(jq -r '.artifacts[0].summary // ""' "$metadata_file") else status="failed" fi ``` --- ### Stage 7: Update Task Status (Postflight) If status is "researched", update state.json and TODO.md. ```bash bash .opencode/scripts/update-task-status.sh postflight "$task_number" research "$session_id" ``` --- ### Stage 8: Link Artifacts Add artifact to state.json with summary. --- ### Stage 9: Git Commit ```bash git add -A git commit -m "task ${task_number}: complete research Session: ${session_id} ``` --- ### Stage 10: Cleanup ```bash rm -f "specs/OC_${padded_num}_${project_name}/.postflight-pending" rm -f "specs/OC_${padded_num}_${project_name}/.return-meta.json" ``` --- ### Stage 11: Return Brief Summary ``` Research completed for task {N}: - Found NixOS module patterns - Identified package configuration - Created report at specs/{NNN}_{SLUG}/reports/research-{NNN}.md - Status updated to [RESEARCHED] - Changes committed ``` --- ## Error Handling ### Input Validation Errors Return immediately if task not found. ### Metadata File Missing Keep status as "researching" for resume. ### Git Commit Failure Non-blocking: Log failure but continue. --- ## Return Format Brief text summary (NOT JSON).