99b0964454
Closes #63620 Count Agent Skill descriptions by Unicode characters rather than UTF-8 bytes across validation, load-time warnings, the skill creator counter, and imported-description truncation. This aligns Zed with the Agent Skills specification and reference validator. Testing: - `cargo test -p agent_skills --lib` - `cargo test -p settings_ui --lib` - `cargo build -p zed` - Manually verified that a 342-character CJK description containing 1,026 UTF-8 bytes can be saved successfully - `./script/clippy -p agent_skills -p settings_ui --tests` is blocked by an unrelated existing `clippy::drain_collect` diagnostic in `crates/rpc/src/proto_client.rs` <img width="667" height="210" alt="Successfully created Unicode test skill" src="https://github.com/user-attachments/assets/2427fce2-9f0f-462d-959f-e08ad160b3d1" /> Confirmed that the Codex agent panel discovers the skill and exposes it in command completion without a length warning. <img width="953" height="367" alt="image" src="https://github.com/user-attachments/assets/8c100197-2e6e-4627-b3f8-862bdfaac918" /> Release Notes: - Fixed valid multibyte Agent Skill descriptions being rejected for exceeding a byte-based length limit. --------- Co-authored-by: Chara <249489759+cmdr-chara@users.noreply.github.com> Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>