feat: Add recall plugin for conversation context recovery

[bledden]

Summary

Claude's context recollection has improved over time, however I am sure any power user would agree it is not yet perfect. I got tired of scrolling, copying and pasting the message or range of prompt + response exchanges. So I made this plugin. It indexes each message and response, and makes it more efficient than ever to recover lost context with Claude.

• Adds a new /recall plugin that helps users recover conversation context when Claude loses track
• Provides interactive browsing with search, time navigation, and pagination
• Includes observability logging to track context loss patterns

Features

Command	Description
/recall	Interactive mode with menu
/recall last5	Fetch last 5 exchanges
/recall search <keyword>	Full-content search
/recall around <time>	Time-based navigation (e.g., 2pm, jan 5 2pm)

Key Capabilities

• Full-content search across both user prompts AND assistant responses
• Multi-day session support with date grouping and date-aware time queries
• Incremental indexing using byte offset tracking (no redundant parsing)
• Observability logging to ~/.claude/recall-events.log
• 91 unit tests with full coverage

Plugin Structure

plugins/recall/
├── .claude-plugin/plugin.json
├── commands/recall.md
├── hooks/
│   ├── hooks.json
│   └── save_context_snapshot.py
├── scripts/
│   ├── utils.py
│   ├── show_index.py
│   ├── fetch_exchanges.py
│   └── extract_context.py
├── tests/ (6 test files, 91 tests)
└── README.md

Test plan

• All 91 unit tests pass (python3 -m unittest discover -v tests/)
• No Python deprecation warnings
• Plugin loads correctly with claude --plugin-dir
• /recall command appears in help
• Interactive mode displays conversation index
• Search finds matches in both user and assistant text
• Time navigation finds correct exchanges
• Observability events logged correctly

🤖 Generated with Claude Code

[bledden]

@ashwin-ant are you going to be the right person to ping to get eyes on this? Apologies if not!