---
title: v0.12.2
date: 2026-06-22
description: 'Bug-fix release: the MCP search tool no longer crashes on non-ASCII content, frontmatter parsing handles `---` inside values, self-update verifies checksums in-process, and GitHub Pages re-deploys are idempotent.'
tags:
- fix
- improvement
---

## Bug Fixes

A focused bug-fix release. No configuration changes are needed — existing sites build and deploy exactly as before.

### MCP search no longer crashes on non-ASCII content

`seite_search` built its result excerpt by slicing the page body with byte offsets taken from a lowercased copy of the text. On any page containing multibyte characters — accents, CJK, emoji — those offsets could land in the middle of a character and **panic, taking the whole MCP server down** mid-session. Since the MCP server is how Claude Code talks to your site, a single search over international content could drop the connection.

The excerpt is now computed in character units, so it never splits a character and never panics, regardless of the content.

### Frontmatter with `---` inside a value now parses

The frontmatter parser looked for the closing `---` delimiter with a plain substring search, so a value like `description: "Before --- After"` was mistaken for the end of the frontmatter block. That truncated the YAML and produced a confusing parse error on a perfectly valid file. The closing delimiter is now matched only when `---` appears on its own line.

### Self-update verifies checksums in-process

`seite self-update` previously shelled out to `sha256sum` / `shasum` to verify the downloaded binary. On systems without those tools (notably Windows) verification always failed, blocking the update. SHA-256 is now computed in-process with the `sha2` crate — integrity verification works everywhere and can no longer silently produce an empty digest or panic on a missing temp directory.

### GitHub Pages re-deploys are idempotent

`seite deploy` to GitHub Pages now creates the `gh-pages` branch with `git checkout -B` instead of `-b`, so a re-deploy over a stale `.git` directory in the output folder no longer fails with "branch 'gh-pages' already exists".

### Subpath deploys rewrite single-quoted URLs

When deploying under a base path (e.g. GitHub Pages project sites), the base-path URL rewriter only handled double-quoted HTML attributes. Single-quoted attributes from custom templates — `href='/about'` — were left unprefixed and broke. Both quote styles are now rewritten.

## Developer Experience

- `seite init` now lists `seite agent` in its "Next steps" so new users discover the Claude Code workflow immediately.
- `seite agent "…" --once` prints a next-step hint on success, pointing to `seite serve` / `seite build`.