Coach - Self-Improving Learning System

Coach enables Claude to learn from friction and improve over time. It detects learning opportunities (user corrections, repeated instructions, tool failures, tone escalation), extracts actionable improvement candidates, and proposes changes requiring explicit user approval.

Core Principle: No silent writes. All improvements require user approval via /coach approve.

Activation Triggers

Activate when: user corrections ("no", "stop", "don't"), repeated instructions, tool/command failures, tone escalation (ALL CAPS, "!!!"), skill supplements ("also remember..."), deprecated-tool warnings, explicit /coach commands, or session end.

Signal Categories (Priority Order)

COMMAND_FAILURE (Highest) - Non-zero exit, stderr patterns
USER_CORRECTION (High) - Explicit correction language
SKILL_SUPPLEMENT (High) - Additional guidance for a skill
VERSION_ISSUE (Medium-High) - Deprecated/outdated warnings
REPETITION (Medium) - Semantically similar instruction repeated
TONE_ESCALATION (Low) - Frustration indicators