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searching-messages

@letta-ai/letta-code
802
0

Search past messages to recall context. Use when you need to remember previous discussions, find specific topics mentioned before, pull up context from earlier in the conversation history, or find which agent discussed a topic.

Install Skill

1Download skill
2Enable skills in Claude

Open claude.ai/settings/capabilities and find the "Skills" section

3Upload to Claude

Click "Upload skill" and select the downloaded ZIP file

Note: Please verify skill by going through its instructions before using it.

SKILL.md

name searching-messages
description Search past messages to recall context. Use when you need to remember previous discussions, find specific topics mentioned before, pull up context from earlier in the conversation history, or find which agent discussed a topic.

Searching Messages

This skill helps you search through past conversations to recall context that may have fallen out of your context window.

When to Use This Skill

  • User asks "do you remember when we discussed X?"
  • You need context from an earlier conversation
  • User references something from the past that you don't have in context
  • You want to verify what was said before about a topic
  • You need to find which agent discussed a specific topic (use with finding-agents skill)

Script Usage

The scripts are located in the scripts/ subdirectory of this skill. Use the Skill Directory path shown above when loading this skill.

npx tsx <SKILL_DIR>/scripts/search-messages.ts --query <text> [options]

Replace <SKILL_DIR> with the actual path from the # Skill Directory: line at the top of this loaded skill.

Options

Option Description
--query <text> Search query (required)
--mode <mode> Search mode: vector, fts, hybrid (default: hybrid)
--start-date <date> Filter messages after this date (ISO format)
--end-date <date> Filter messages before this date (ISO format)
--limit <n> Max results (default: 10)
--all-agents Search all agents, not just current agent
--agent-id <id> Explicit agent ID (for manual testing)

Search Modes

  • hybrid (default): Combines vector similarity + full-text search with RRF scoring
  • vector: Semantic similarity search (good for conceptual matches)
  • fts: Full-text search (good for exact phrases)

Companion Script: get-messages.ts

Use this to expand around a found needle by message ID cursor:

npx tsx <SKILL_DIR>/scripts/get-messages.ts [options]
Option Description
--after <message-id> Get messages after this ID (cursor)
--before <message-id> Get messages before this ID (cursor)
--order <asc|desc> Sort order (default: desc = newest first)
--limit <n> Max results (default: 20)
--agent-id <id> Explicit agent ID

Search Strategies

Strategy 1: Needle + Expand (Recommended)

Use when you need full conversation context around a specific topic:

  1. Find the needle - Search with keywords to discover relevant messages:

    npx tsx <SKILL_DIR>/scripts/search-messages.ts --query "flicker inline approval" --limit 5

  2. Note the message_id - Find the most relevant result and copy its message_id

  3. Expand before - Get messages leading up to the needle:

    npx tsx <SKILL_DIR>/scripts/get-messages.ts --before "message-xyz" --limit 10

  4. Expand after - Get messages following the needle (use --order asc for chronological):

    npx tsx <SKILL_DIR>/scripts/get-messages.ts --after "message-xyz" --order asc --limit 10

Strategy 2: Date-Bounded Search

Use when you know approximately when something was discussed:

npx tsx <SKILL_DIR>/scripts/search-messages.ts --query "topic" --start-date "2025-12-31T00:00:00Z" --end-date "2025-12-31T23:59:59Z" --limit 15

Results are sorted by relevance within the date window.

Strategy 3: Broad Discovery

Use when you're not sure what you're looking for:

npx tsx <SKILL_DIR>/scripts/search-messages.ts --query "vague topic" --mode vector --limit 10

Vector mode finds semantically similar messages even without exact keyword matches.

Strategy 4: Find Which Agent Discussed Something

Use with --all-agents to search across all agents and identify which one discussed a topic:

npx tsx <SKILL_DIR>/scripts/search-messages.ts --query "authentication refactor" --all-agents --limit 10

Results include agent_id for each message. Use this to:

  1. Find the agent that worked on a specific feature
  2. Identify the right agent to ask follow-up questions
  3. Cross-reference with the finding-agents skill to get agent details

Tip: Load both searching-messages and finding-agents skills together when you need to find and identify agents by topic.

Search Output

Returns search results with:

  • message_id - Use this for cursor-based expansion
  • message_type - user_message, assistant_message, reasoning_message
  • content or reasoning - The actual message text
  • created_at - When the message was sent (ISO format)
  • agent_id - Which agent the message belongs to