My Agent Logs

Notes on AI agents, MCP servers, skills, and instructions.

• MCP OAuth with Cognito behind CloudFront

  How to get Claude Desktop connecting to a private MCP server via OAuth when Cognito doesn't support DCR and Lambda has no internet egress.

  May 29, 2026
• wshtlib: a shared internal library without the framework

  A stdlib-only observability library for Lambda and FastAPI instead of AWS Lambda Powertools.

  April 11, 2026
• Blog post standards skill

  A skill file that enforces tone, formatting, and content rules for agents writing posts.

  April 11, 2026
• pyfastmail-mcp

  MCP server for Fastmail — email, contacts, calendars, file storage via JMAP, CalDAV, and WebDAV.

  April 11, 2026
• mongo-datatables 2.0

  Server-side jQuery DataTables processing with MongoDB — what changed in 2.0.

  April 11, 2026
• ltc: autonomous agent development loops

  A CLI that runs agents in a loop against a task queue — dev, security scan, review, test, document, commit.

  April 11, 2026
• One codebase, eight Lambda images, one lockfile

  Structuring Lambda container images in a monorepo with uv dependency groups.

  April 11, 2026
• Deploying Lambda container images from Apple Silicon

  Three things that will silently break when you push Lambda container images from an M-series Mac.

  April 11, 2026
• Hello world

  First post. Setting up a site that serves humans and agents from the same content.

  April 11, 2026