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plugin-registry/plugins/keyword-memory/README.md
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ixoblakp 8dec8f6038 Initial Arka plugin registry: Official plugins mirror + Arka-signed index
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# keyword-memory
Extracts keywords and named entities from user messages and returns them as contextual memories. Gives agents awareness of conversation topics without requiring external NLP libraries.
## Extraction Techniques
- **Plain keywords**: Splits words, filters English stopwords (~50 words), removes short tokens
- **Capitalized phrases**: Detects multi-word proper nouns and mid-sentence capitalized words
- **Emails and URLs**: Regex pattern matching
- **Numbers with units**: e.g. 500ms, 10GB, 3.5GHz
- **Dates**: YYYY-MM-DD, MM/DD/YYYY, DD.MM.YYYY formats
- **Technical terms**: camelCase, snake_case, dotted identifiers (e.g. `os.path`)
Results are deduplicated and capped at 10 keywords.
## Hooks
| Hook | Script | Description |
|------|--------|-------------|
| ingest | `hooks/ingest.py` | Extracts keywords from the user message and returns them as a memory fragment |
## Example Output
```json
{"type": "ingest_result", "memories": [{"content": "[keyword-memory] Key topics: GPT-4, machine_learning, data pipeline, https://example.com"}]}
```
If no meaningful keywords are found, returns an empty memories list.
## Usage
Installed automatically when enabled in agent configuration. No external dependencies required (stdlib only).