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104 lines
2.9 KiB
Markdown
104 lines
2.9 KiB
Markdown
# ktx-daemon
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`ktx-daemon` is the portable Python compute package for KTX.
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It supports portable compute in two modes:
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- One-shot commands, used by default by `@ktx/context`.
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- An explicit HTTP server for long-running local MCP sessions.
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## One-shot semantic query
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```bash
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printf '%s\n' '{"sources":[],"query":{"measures":[],"dimensions":[]},"dialect":"postgres"}' \
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| ktx-daemon semantic-query
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```
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## One-shot source generation
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Generate semantic-layer sources from schema scan data:
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```bash
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printf '%s\n' '{"tables":[{"name":"orders","db":"public","columns":[{"name":"id","type":"integer","primary_key":true}]}],"links":[],"dialect":"postgres"}' \
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| ktx-daemon semantic-generate-sources
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```
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## One-shot database introspection
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Introspect a Postgres database schema:
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```bash
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printf '%s\n' '{"connection_id":"warehouse","driver":"postgres","url":"postgresql://readonly@example.test/warehouse","schemas":["public"]}' \
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| ktx-daemon database-introspect
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```
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## One-shot LookML parsing
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Parse LookML projects into resolved, KSL-ready structures:
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```bash
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printf '%s\n' '{"files":[{"path":"views/orders.view.lkml","content":"view: orders { sql_table_name: public.orders ;; measure: order_count { type: count } }"}],"dialect":"postgres"}' \
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| ktx-daemon lookml-parse
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```
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## One-shot embeddings
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Compute text embeddings locally:
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```bash
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printf '%s\n' '{"text":"hello"}' \
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| ktx-daemon embedding-compute
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```
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Compute text embeddings locally in bulk:
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```bash
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printf '%s\n' '{"texts":["hello","world"]}' \
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| ktx-daemon embedding-compute-bulk
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```
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## One-shot code execution
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Execute Python code with the current in-process boundary:
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```bash
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printf '%s\n' '{"code":"result = 1 + 2"}' \
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| ktx-daemon code-execute
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```
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## HTTP compute server
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Start the HTTP compute server with code execution disabled:
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```bash
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ktx-daemon serve-http --host 127.0.0.1 --port 8765
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```
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Enable HTTP code execution explicitly:
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```bash
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ktx-daemon serve-http --host 127.0.0.1 --port 8765 --enable-code-execution
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```
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Available HTTP endpoints:
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- `GET /health`
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- `POST /database/introspect`
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- `POST /embeddings/compute`
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- `POST /embeddings/compute-bulk`
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- `POST /lookml/parse`
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- `POST /semantic-layer/generate-sources`
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- `POST /semantic-layer/query`
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- `POST /semantic-layer/validate`
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- `POST /code/execute` when `--enable-code-execution` is passed
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The HTTP server exposes Postgres database introspection, LookML parsing, local
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embedding compute, and semantic-layer compute for source generation, query
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compilation, and validation.
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Code execution is off by default. When enabled, it runs Python `exec` in the
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daemon process with the same in-process boundary as the one-shot
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`code-execute` command and does not provide OS-level sandboxing.
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HTTP code execution uses the standalone KTX boundary. It does not forward
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caller authorization headers to a host app and does not connect scratchpad or
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visualization helpers to host application APIs.
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