# Arch Studio 1.5.2

Available on MCP and Open source · Published 2026-10-16

> The MCP serves Arch Studio 1.5.2 content. Skills, references and tools are those of 1.5.1.2; Skill Maker's verification wording is the only skill text change.

## What’s new

- No skill, agent role or reference was added, removed or renamed. The catalog stays at 61 skills in 9 practice areas and 86 references.
- Skill Maker verification: a generated skill must show an observed fresh read of the studio policy and a separate observed read of the destination after publication. A claimed read, or a prepared file compared with itself, no longer counts as verification. This is the only change to skill text.
- Two documentation resources are added, on hosted module record routing and server JSON tool contracts.

## Known limitations

- The update check and usage ping belong to the open-source Claude Code plugin. The MCP has no lifecycle hook and sends neither.
- Your assistant's capabilities and permissions still apply. Workflow delivery is not proof that a requested artifact or action completed.

## Upgrade and migration

- No migration is required. Refresh the MCP connection to see release 1.5.2.

## Release details

- Version: 1.5.2
- Available on: MCP and Open source
- Published: 2026-10-16
- Source digest: sha256:25a0ec943af1c96f6635dd9b42fbc26ed92535d0e1e35aeeb5e596eeb96662e9
- Skills: 61
- Agent roles: 8
- Practice areas: 9
- External references: 86

## Links

- [Install Arch Studio](https://architecturestudio.ai/docs/install)
- [All releases](https://architecturestudio.ai/releases)
- [Previous release: Arch Studio 1.5.1.2](https://architecturestudio.ai/releases/public-1-5-1-2)
- [Next release: Arch Studio 1.5.2](https://architecturestudio.ai/releases/public-1-5-2)