forward-implementation-first is a 150-line skill that stops agents from servicing their own bookkeeping

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Created 2026-08-29 and at 148 stars within a day, Vuk97/forward-implementation-first targets a specific pipeline failure mode: an orchestrator writes hash-stamped completion receipts, a producer changes, the hash mismatches, and the agent invalidates a dozen upstream stages and refuses manual runs because the pipeline "cannot issue a receipt." The skill gives the agent one classification to make before every action plus a short list of forbidden moves, in roughly 150 lines of Markdown. It is model-agnostic, tool-agnostic and domain-agnostic, and works for Claude Code, Codex and other agents.