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Turn long Codex tasks into durable Goals with observable outcomes, acceptance evidence, checkpoints, drift controls, and clear completion conditions. Preview the loop before execution. Use focused checks during development and broader verification at delivery gates. Free, MIT licensed. Includes an English case study of a multi-day Godot port; the maintainer reports a longest workflow of 60+ hours.
Hi everyone! I maintain Goal Instruction Writer, the Codex skill I use to plan and review long agent workflows.
The problem that led to it was simple: a task can keep producing activity while drifting away from the requested outcome. Another recurring issue was repeatedly running broad test suites after small changes.
The skill first previews the execution loop, then writes a Goal with an observable outcome, acceptance evidence, scope and authority boundaries, checkpoints, drift controls, and completion conditions. It also makes verification proportional to the change, so focused iteration checks and delivery gates have clear roles.
I've used this approach in multi-day game-development work. My longest workflow is estimated at 60+ hours. The linked English case follows inspected stages of a Factory Town Idle Godot port through Mac and Android local candidate deliveries; the full project Goal was still active at that snapshot.
The repository includes install instructions, examples, field notes, and an English case study. Continuation, tools, permissions, and recovery come from your agent runtime.
I'd love practical feedback: what kinds of long tasks make your agent lose the original goal, and which completion conditions are hardest to express?
Source and installation: https://github.com/wu736139669/g...
English case study: https://github.com/wu736139669/g...
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About Goal Instruction Writer on Product Hunt
“Keep long-running Codex work tied to one outcome”
Goal Instruction Writer was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #169 on the daily leaderboard. Turn long Codex tasks into durable Goals with observable outcomes, acceptance evidence, checkpoints, drift controls, and clear completion conditions. Preview the loop before execution. Use focused checks during development and broader verification at delivery gates. Free, MIT licensed. Includes an English case study of a multi-day Godot port; the maintainer reports a longest workflow of 60+ hours.
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Goal Instruction Writer was hunted by Shenghua Wu. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Shenghua Wu