When user types /hyperplan something, two pipelines race for the message:
1. keyword-detector hook (chat.message): the regex \b(hyperplan|hpp)\b
matches /hyperplan because \b is satisfied by the / boundary, so the
hook prepends <hyperplan-mode> to the text part.
2. auto-slash-command hook (chat.message, runs immediately after):
detectSlashCommand() checks `text.trimStart().startsWith("/")`. After
keyword-detector's prepend, the part now starts with <hyperplan-mode>
and the slash check fails, so the builtin command template
(with $ARGUMENTS substituted) is never injected.
The visible symptom: /hyperplan refactor X never runs the actual
HYPERPLAN_TEMPLATE - the user sees only the keyword-detector wrapper, which
is similar but not identical, and the slash command's $ARGUMENTS payload
is silently lost.
Fix: at the top of the keyword-detector hook, after isSystemDirective() but
before any keyword scan, bail out if the prompt text starts with a slash
command (^\s*\/[a-zA-Z][\w-]*\b). Slash commands are explicit invocations
and own their own mode-injection path; the keyword detector must not race
them. Free-form mentions like "hyperplan: refactor X" still trigger
keyword detection - only the leading-slash form is suppressed.
Lock the contract with three regression tests:
- /hyperplan refactor ... must NOT inject <hyperplan-mode>
- /hpp investigate ... must NOT inject (shorthand slash command)
- "hyperplan: refactor src/auth/handler.ts" still injects (free-form)
Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode).
YeonGyu-Kim
f6643e7e77