dsh-skill-fuzzy

Codex-style fuzzy skill search for the DeepSeek Harness Web GUI. The built-in / skill menu only matches skill-name prefixes (startsWith); this plugin makes it search the way Codex does:

Query	Result
/diag	diagnosing-bugs (name prefix)
/bug	diagnosing-bugs (name substring)
/bu	diagnosing-bugs (name contiguous substring)
/regression	diagnosing-bugs (description term)

Matching & ranking

• Names — port of Codex's fuzzy-match: greedy, case-insensitive ordered-subsequence matching with a window + start-of-string-bonus score (smaller is better; prefix hits dominate).
• Descriptions — matched as contiguous, case-insensitive substrings only (deliberately tightened after field testing: scattered subsequences across a long description surfaced noise, e.g. /m01 hitting a skill whose description merely contains an m…0…1 spread).
• Ordering — name-hits first → score ascending → stable roster order. Empty query returns the full roster unchanged (prefix behavior never regresses).

Install

dsh plugin --profile web add /path/to/dsh-skill-fuzzy
# or from GitHub:
dsh plugin --profile web add github:ch1bug/dsh-skill-fuzzy

Restart dsh web and hard-refresh the GUI (the boot manifest is injected at page load), then type / and search.

How it works

A web-client-only plugin. It wraps the built-in / skill source's candidates() — found via inputTriggers.live.sources (the service's public face is {ctx, name, live} + prototype {registerSource, sessionOf, sessions}; there is no all()/sources() accessor on the service — those live on the menu controller's internal roster). The wrapper calls the original candidates with an empty query to obtain the full roster (preserving the skill.list RPC, user-only markers and abort semantics), then filters/ranks it. registerSource is patched as a guard for late re-registrations.

Development

lib/fuzzy.js         Codex fuzzy-match port (fuzzyMatch)
lib/skill-rank.mjs   ranking (rankSkills)
lib/client.js        self-contained browser half (inlines both; pinned by
                     tests/sync.test.mjs against the tested modules)
tests/               node:test suite — node --test tests/fuzzy.test.mjs
                     tests/skill-rank.test.mjs tests/sync.test.mjs

The client bundle route serves a single client.js per plugin, so the pure logic is inlined there and kept in sync with the tested modules by tests/sync.test.mjs.

License

MIT. The fuzzyMatch algorithm is a port of codex-rs/utils/fuzzy-match from openai/codex — see NOTICE.md.