contextd

This skill should be used to preserve or restore session state. It triggers when the user says "save my progress", "checkpoint this", "pick up where we left off", or "resume", before /clear, before a long-running task, or when context usage approaches ~70%. Covers checkpoint_save, checkpoint_list, and checkpoint_resume.

This skill should be used when starting a task to check for prior solutions, or when finishing one to record a learning. It triggers when the user says "have we solved this before", "remember this", "record what we learned", reuses a past approach, or captures a design decision worth surviving the session. Covers memory_search, memory_record, memory_feedback, and memory_outcome.

This skill should be used whenever an error, exception, failed build, failing test, stack trace, compiler/linter error, CI failure, or panic appears, or when the user asks "why is this failing" or "how do I fix this". Covers troubleshoot_diagnose, remediation_search, remediation_record, and remediation_feedback to match errors to past fixes and record new ones.

This skill should be used at the start of a coding or research session, or when the user says "what did we do before", "remember", "resume", mentions persistent or cross-session memory, or begins a non-trivial task that could reuse prior learnings. It establishes the contextd workflow — run semantic_search and memory_search before exploring code — and points to the cross-session-memory, checkpoint-workflow, and error-remediation skills.