Add community skills, agents, system prompts from 22+ sources

Community Skills (32):
- jat: jat-start, jat-verify, jat-complete
- pi-mono: codex-cli, codex-5.3-prompting, interactive-shell
- picoclaw: github, weather, tmux, summarize, skill-creator
- dyad: 18 skills (swarm-to-plan, multi-pr-review, fix-issue, lint, etc.)
- dexter: dcf valuation skill

Agents (23):
- pi-mono subagents: scout, planner, reviewer, worker
- toad: 19 agent configs (Claude, Codex, Gemini, Copilot, OpenCode, etc.)

System Prompts (91):
- Anthropic: 15 Claude prompts (opus-4.6, code, cowork, etc.)
- OpenAI: 49 GPT prompts (gpt-5 series, o3, o4-mini, tools)
- Google: 13 Gemini prompts (2.5-pro, 3-pro, workspace, cli)
- xAI: 5 Grok prompts
- Other: 9 misc prompts (Notion, Raycast, Warp, Kagi, etc.)

Hooks (9):
- JAT hooks for session management, signal tracking, activity logging

Prompts (6):
- pi-mono templates for PR review, issue analysis, changelog audit

Sources analyzed: jat, ralph-desktop, toad, pi-mono, cmux, pi-interactive-shell,
craft-agents-oss, dexter, picoclaw, dyad, system_prompts_leaks, Prometheus,
zed, clawdbot, OS-Copilot, and more

hooks/community/jat/log-tool-activity.sh

@@ -0,0 +1,113 @@
+#!/usr/bin/env bash
+#
+# log-tool-activity.sh - Claude hook to log tool usage
+#
+# This hook is called after any tool use by Claude
+# Hook receives tool info via stdin (JSON format)
+
+set -euo pipefail
+
+# Read tool info from stdin
+TOOL_INFO=$(cat)
+
+# Extract session ID from hook data (preferred - always available in hooks)
+SESSION_ID=$(echo "$TOOL_INFO" | jq -r '.session_id // ""' 2>/dev/null || echo "")
+if [[ -z "$SESSION_ID" ]]; then
+    # Fallback to PPID-based file if session_id not in JSON (shouldn't happen with hooks)
+    # Note: PPID here is the hook's parent, which may not be correct
+    SESSION_ID=$(cat /tmp/claude-session-${PPID}.txt 2>/dev/null | tr -d '\n' || echo "")
+fi
+
+if [[ -z "$SESSION_ID" ]]; then
+    exit 0  # Can't determine session, skip logging
+fi
+
+# Parse tool name and parameters (correct JSON paths)
+TOOL_NAME=$(echo "$TOOL_INFO" | jq -r '.tool_name // "Unknown"' 2>/dev/null || echo "Unknown")
+
+# Build preview based on tool type
+case "$TOOL_NAME" in
+    Read)
+        FILE_PATH=$(echo "$TOOL_INFO" | jq -r '.tool_input.file_path // ""' 2>/dev/null || echo "")
+        PREVIEW="Reading $(basename "$FILE_PATH")"
+        log-agent-activity \
+            --session "$SESSION_ID" \
+            --type tool \
+            --tool "Read" \
+            --file "$FILE_PATH" \
+            --preview "$PREVIEW" \
+            --content "Read file: $FILE_PATH"
+        ;;
+    Write)
+        FILE_PATH=$(echo "$TOOL_INFO" | jq -r '.tool_input.file_path // ""' 2>/dev/null || echo "")
+        PREVIEW="Writing $(basename "$FILE_PATH")"
+        log-agent-activity \
+            --session "$SESSION_ID" \
+            --type tool \
+            --tool "Write" \
+            --file "$FILE_PATH" \
+            --preview "$PREVIEW" \
+            --content "Write file: $FILE_PATH"
+        ;;
+    Edit)
+        FILE_PATH=$(echo "$TOOL_INFO" | jq -r '.tool_input.file_path // ""' 2>/dev/null || echo "")
+        PREVIEW="Editing $(basename "$FILE_PATH")"
+        log-agent-activity \
+            --session "$SESSION_ID" \
+            --type tool \
+            --tool "Edit" \
+            --file "$FILE_PATH" \
+            --preview "$PREVIEW" \
+            --content "Edit file: $FILE_PATH"
+        ;;
+    Bash)
+        COMMAND=$(echo "$TOOL_INFO" | jq -r '.tool_input.command // ""' 2>/dev/null || echo "")
+        # Truncate long commands
+        SHORT_CMD=$(echo "$COMMAND" | head -c 50)
+        [[ ${#COMMAND} -gt 50 ]] && SHORT_CMD="${SHORT_CMD}..."
+        PREVIEW="Running: $SHORT_CMD"
+        log-agent-activity \
+            --session "$SESSION_ID" \
+            --type tool \
+            --tool "Bash" \
+            --preview "$PREVIEW" \
+            --content "Bash: $COMMAND"
+        ;;
+    Grep|Glob)
+        PATTERN=$(echo "$TOOL_INFO" | jq -r '.tool_input.pattern // ""' 2>/dev/null || echo "")
+        PREVIEW="Searching: $PATTERN"
+        log-agent-activity \
+            --session "$SESSION_ID" \
+            --type tool \
+            --tool "$TOOL_NAME" \
+            --preview "$PREVIEW" \
+            --content "$TOOL_NAME: $PATTERN"
+        ;;
+    AskUserQuestion)
+        # Note: Question file writing is handled by pre-ask-user-question.sh (PreToolUse hook)
+        # This PostToolUse hook only logs the activity
+        QUESTIONS_JSON=$(echo "$TOOL_INFO" | jq -c '.tool_input.questions // []' 2>/dev/null || echo "[]")
+        FIRST_QUESTION=$(echo "$QUESTIONS_JSON" | jq -r '.[0].question // "Question"' 2>/dev/null || echo "Question")
+        SHORT_Q=$(echo "$FIRST_QUESTION" | head -c 40)
+        [[ ${#FIRST_QUESTION} -gt 40 ]] && SHORT_Q="${SHORT_Q}..."
+        PREVIEW="Asking: $SHORT_Q"
+        log-agent-activity \
+            --session "$SESSION_ID" \
+            --type tool \
+            --tool "AskUserQuestion" \
+            --preview "$PREVIEW" \
+            --content "Question: $FIRST_QUESTION"
+        ;;
+    *)
+        # Generic tool logging
+        PREVIEW="Using tool: $TOOL_NAME"
+        log-agent-activity \
+            --session "$SESSION_ID" \
+            --type tool \
+            --tool "$TOOL_NAME" \
+            --preview "$PREVIEW" \
+            --content "Tool: $TOOL_NAME"
+        ;;
+esac
+
+exit 0