* ci(homebrew): prefer HOMEBREW_UPSTREAM_PR_TOKEN with fallback
* ci(homebrew): handle existing upstream remote and main base
* fix(skills): allow cross-skill references in open-skills audit
Issue: #1391
The skill audit was too strict when validating markdown links in
open-skills, causing many skills to fail loading with errors like:
- "absolute markdown link paths are not allowed (../other-skill/SKILL.md)"
- "markdown link points to a missing file (skill-name.md)"
Root cause:
1. `looks_like_absolute_path()` rejected paths starting with ".."
before canonicalization could validate they stay within root
2. Missing file errors were raised for cross-skill references that
are valid but point to skills not installed locally
Fix:
1. Allow ".." paths to pass through to canonicalization check which
properly validates they resolve within the skill root
2. Treat cross-skill references (parent dir traversal or bare .md
filenames) as non-fatal when pointing to missing files
Cross-skill references are identified by:
- Parent directory traversal: `../other-skill/SKILL.md`
- Bare skill filename: `other-skill.md`
- Explicit relative: `./other-skill.md`
Added 6 new tests to cover edge cases for cross-skill references.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* feat(config): warn on unknown config keys to prevent silent misconfig
Issue: #1304
When users configure `[providers.ollama]` with `api_url`, the setting is
silently ignored because `[providers.*]` sections don't exist in the
config schema. This causes Ollama to always use localhost:11434 regardless
of the configured URL.
Fix: Use serde_ignored to detect and warn about unknown config keys at
load time. This helps users identify misconfigurations like:
- `[providers.ollama]` (should be top-level `api_url`)
- Typos in section names
- Deprecated/removed options
The warning is non-blocking - config still loads, but users see:
```
WARN Unknown config key ignored: "providers". Check config.toml...
```
This follows the fail-fast/explicit errors principle (CLAUDE.md §3.5).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Will Sarg <12886992+willsarg@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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