[Amronos]

Problem

The standalone binaries on GitHub Releases (used by mise/aqua and other direct downloads) ship without skill-data/, so every skills command fails:

$ agent-browser skills get core
✗ Skills directory not found. Install skills under ~/.agent-browser/ or set AGENT_BROWSER_SKILLS_DIR.

Today the only fix is to download the source tarball, extract skill-data/ and point AGENT_BROWSER_SKILLS_DIR or ~/.agent-browser/ at it, matching the version by hand. Fixes #1983.

Changes

• skill-data/ is compiled into the binary with rust-embed, which the CLI already uses for the dashboard. skills list, skills get (including --full, --ref and --all) and the MCP skills tools serve it when no skills directory is found on disk.
• On-disk skills still win, in the existing order: AGENT_BROWSER_SKILLS_DIR, the package root (npm installs and source checkouts), then ~/.agent-browser/skills and ~/.agent-browser/skill-data. The embedded copy replaces the "Skills directory not found" error.
• skills path has no directory to print for embedded skills. It reports that skills are embedded, and --json returns {"location": "embedded"} (with "paths": [] when no name is given). This follows agent-desktop skills path, which returns "location": "embedded" for its compiled-in skills.
• #[allow_missing = true] keeps builds that cannot see ../skill-data, such as the crates.io package or the Docker scripts that mount only cli/, compiling. Those builds embed nothing and behave as they do today. build.rs watches ../skill-data so added skill files trigger a rebuild.
• Binary size grows by about 220 KB (the size of skill-data/), roughly 1% of the 17 to 20 MB release binaries.
• --help, the skills docs page, and the MCP tool descriptions (plus the catalog snapshot) describe the fallback.

Tests

• test_embedded_skills_match_skill_data checks that the embedded skills match discover_skills on skill-data/: names, descriptions, hidden flags, content and supplementary files.
• standalone_binary_serves_embedded_skills_through_cli_and_mcp copies the binary into an empty directory with an empty HOME, then checks that skills get core prints skill-data/core/SKILL.md byte for byte, that skills list and agent_browser_skills_get serve it, and that skills path core --json reports embedded. CI runs tests with the ci profile, which inherits release, so this exercises the compiled-in copy and not rust-embed's debug-mode disk reads.
• The existing home-directory test still passes, so ~/.agent-browser skills keep taking precedence over the embedded copy.

Written by Opus 5.5 (opus-5.5) through Sprocket.

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