Simon Willison

datasette-explain 0.2.2

The article announces the release of datasette-explain version 0.2.2, noting that the plugin’s plan explanations now work on read‑only stored‑query pages. The author upgraded the demo site to Datasette 1.0a40, which motivated the new plugin version. The release is tagged for sqlite and datasette users.

Simon Willison
Sep 11

datasette 0.65.4

The article announces the release of Datasette version 0.65.4, noting that it includes security updates. It references the Datasette blog for more details on the 1.0a39 and 0.65.4 security releases. The release is tagged as a security update for the Datasette project.

Simon Willison
Sep 11

datasette 1.0a39

The article announces the release of Datasette version 1.0a39, noting that it includes security updates. It references the Datasette blog for details on the 1.0a39 release and the 0.65.4 security releases. The release is tagged with security and datasette.

Simon Willison
6d ago

datasette 1.0a40

The article announces the release of Datasette 1.0a40, which includes a security fix identical to that in version 0.65.5, new features such as the ability for plugins to launch and manage background tasks via the datasette.add_background_task() method, and a migration to httpx2 to support features like datasette.client.get(). The update also contains numerous bug fixes, many of which were addressed during a recent triage effort for the upcoming 1.0 stable release.

Simon Willison
Sep 11

datasette-publish-fly 1.4

The article announces the release of datasette-publish-fly version 1.4. It highlights new features such as setting force_https=true in fly.toml, a fix for the "Volume could not be found" bug, and compatibility with app‑scoped deploy tokens. The release is tagged under datasette and fly.

Simon Willison
Sep 11

github-to-sqlite 2.9.1

The article announces the release of github-to-sqlite version 2.9.1. It includes a fix that ensures compatibility with sqlite-utils 4.x. The update is relevant for users integrating GitHub data into SQLite databases.

Simon Willison
6d ago

datasette 0.65.5

The article announces the release of datasette version 0.65.5. It includes a security fix that addresses an issue where a trailing newline in a requested table name could bypass table permissions and expose private rows. The vulnerability was reported by dpfkdlemtp and is referenced by GHSA-h547-rmjf-5m2m.

Simon Willison
Sep 1

datasette-mcp 0.2

Release: datasette-mcp 0.2 "rows" from execute_sql is now an array of objects. Previously it was an array of arrays. This should help weaker models avoid losing track of which positional arr...

Simon Willison
Sep 2

Claude's new system prompt really doesn't want to reproduce song lyrics

Anthropic has released the system prompts for its Claude consumer applications, including historic changes and an index structure that allows easy diffing of prompts. The latest update, seen in Fable 5.1, adds a comprehensive rule that Claude will not reproduce song lyrics, poems, or copyrighted passages, and will refuse any reworded requests thereafter, offering analysis instead. The prompts are accessible in Markdown via the platform.claude.com/docs site, facilitating transparent tracking of policy changes.

Simon Willison
4d ago

Quoting Thariq Shihipar

The article announces that Claude Code will now support AGENTS.md files starting with version 2.1.277. If a CLAUDE.md file is absent in a folder, Claude will automatically look for and use AGENTS.md, leveraging Claude Code mods to customize the harness. The built‑in mod is available for use, and users can also create their own custom project instructions.

Simon Willison
Sep 11

Datasette 1.0a39 and 0.65.4 security releases

Datasette 1.0a39 and 0.65.4 are new security patch releases for the current alpha series and the stable 0.65.x family. The updates address security fixes that are important for public-facing Datasette instances, especially those that mix public and private tables. The patches were developed after an extensive audit using advanced AI models and collaborative review, and the process will be incorporated into future development work.

Simon Willison
Sep 11

Quoting Boris Cherny

The article discusses how production code generated by Claude, Anthropic’s AI, should meet higher standards than human-written code. Anthropic enforces this through numerous guardrails such as lint rules, extensive testing, Claude-driven end‑to‑end tests, daily fuzzers, automated code and security reviews, and automated refactoring. These measures aim to prevent the code from becoming difficult to maintain.