DATASETTE PUB_DATE: 2026.04.01

DATASETTE’S LLM STACK ADDS ASYNC WRAPPERS, PURPOSE-BASED ROUTING, AND RICHER USAGE LOGGING

A coordinated set of releases tightens how Datasette and the LLM toolchain handle async models, model routing, and usage logging. The LLM CLI gained a smarter ...

Datasette’s LLM stack adds async wrappers, purpose-based routing, and richer usage logging

A coordinated set of releases tightens how Datasette and the LLM toolchain handle async models, model routing, and usage logging.

The LLM CLI gained a smarter plugin hook in llm 0.30, enabling plugins to see all registered models. That unblocks llm-all-models-async 0.1, which wraps sync-only models in async via a thread pool so async-only consumers, like Datasette, can use them.

datasette-llm 0.1a4 adds purpose-based API keys and routing, while 0.1a5 tracks prompts across chains and tool-call loops. Debugging improved with llm-echo 0.3 for key and tool-call tests and 0.4 exposing input/output token counts.

Downstream, datasette-enrichments-llm 0.2a0 and datasette-extract 0.3a0 now use datasette-llm and can whitelist models for the "enrichments" purpose. datasette-llm-usage 0.2a0 logs prompts, responses, and tool calls to SQLite and shifts pricing/allowances to a separate accountant plugin.

[ WHY_IT_MATTERS ]
01.

Async wrappers and purpose-based routing reduce integration friction and let you govern which models run which jobs.

02.

Deeper logging makes cost, risk, and reliability visible across prompt chains and tool calls.

[ WHAT_TO_TEST ]
  • terminal

    Wrap a sync-only model with llm-all-models-async, point Datasette at it, and validate concurrency and latency under load.

  • terminal

    Enable datasette-llm-usage.log_prompts, run a tool-call chain, and verify prompt, response, and token logs using llm-echo.

[ BROWNFIELD_PERSPECTIVE ]

Legacy codebase integration strategies...

  • 01.

    Migrate existing model configs to datasette-llm with purpose-scoped API keys; audit secrets and env separation per purpose.

  • 02.

    Decide retention for prompt logs and scrub PII before enabling in production; move any pricing/allowance logic to the accountant plugin.

[ GREENFIELD_PERSPECTIVE ]

Fresh architecture paradigms...

  • 01.

    Adopt datasette-llm as the model hub from day one with purpose-based routing and usage logging baked in.

  • 02.

    Prefer async models; if unavailable, wrap sync ones and design enrich/extract pipelines with an approved-models list.

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