vitaliikapliuk

vitaliikapliuk/modelharness

Plugin Claude Code

Plugin marketplace listing 1 plugin: modelharness.

vitaliikapliuk/modelharness

Plugin Claude Code

Fable 5 behavioral patterns as a harness for Opus 4.8: grounded progress, self-verification loops, delegation triggers, file-based memory, autonomy calibration. Zero-config: installs a SessionStart hook; skills auto-trigger.

vitaliikapliuk/modelharness

Agent

Fresh-context verifier. Use PROACTIVELY after completing any multi-step task - verifies work against its specification by running real checks, immune to the implementer's rationalizations.

vitaliikapliuk/modelharness

Command

Extract a full task specification up front (goal, constraints, definition of done), then execute — the primary documented lever for Opus 4.8 long-horizon quality.

vitaliikapliuk/modelharness

Command

Write this session's lessons into the project's lessons/ directory using the memory-discipline format.

vitaliikapliuk/modelharness

Command

Spawn a fresh-context verifier subagent to check completed work against its specification before trusting it.

vitaliikapliuk/modelharness

Hook

Runs when a session starts on startup, resume, clear and compact, executing session-start.sh. From vitaliikapliuk/modelharness.

vitaliikapliuk/modelharness

Skill Claude CodeCodex

Use when deciding whether to spawn subagents — explicit rules for when delegation pays off and when direct work is faster. Opus 4.8 under-delegates by default; these rules correct that.

vitaliikapliuk/modelharness

Skill Claude CodeCodex

Use when recording lessons learned in a project, or when a project contains lessons/ or MEMORY.md — file-based memory format and read/write rules that measurably improve long-horizon performance.

vitaliikapliuk/modelharness

Skill Claude CodeCodex

Use when a task spans more than a few steps or files — establishes a checkable definition of done, a verification cadence, and fresh-context verifier subagents before claiming completion.