The merged command surface still listed /skills but treated every positional argument as unexpected usage text, so slash-based skill invocation regressed. This wires /skills and /agents invocations back through the prompt path, shares skill resolution between the slash/discovery layer and the Skill tool, and teaches skill discovery to see enabled plugin roots plus namespaced plugin skills such as oh-my-claudecode:ralplan.
Constraint: Keep documentation files untouched while restoring the runtime behavior
Rejected: Add a separate skill-invoke tool name | existing Skill tool already covered the loading surface once resolution was fixed
Rejected: Resolve plugin skills only inside the slash handler | would leave the Skill tool and direct invocation path inconsistent
Confidence: high
Scope-risk: moderate
Reversibility: clean
Directive: Keep slash discovery/help behavior and Skill-tool resolution on the same registry path so plugin and project skills do not drift again
Tested: cargo check; cargo test; direct /skills help overview smoke run
Not-tested: End-to-end live provider execution for a real installed oh-my-claudecode plugin beyond synthetic fixture coverage
