blender-stop-condition-decider

name	blender-stop-condition-decider
description	Define explicit "done" conditions for a Blender recipe before starting work, so the agent stops at the right point instead of drifting into endless polish.

blender-stop-condition-decider

Purpose

Pin a single, explicit stop condition for a recipe so the agent knows when to declare "done" and hand off — not earlier, not later. Inspired by Anthropic Superpowers /just-say-when-it's-done analog.

Quick start

• write one stop condition per recipe (one sentence, concrete)
• write what is OUT OF SCOPE for "done"
• write the handoff trigger (which skill receives the deliverable when stop condition fires)
• enforce: do not polish past the stop condition; do not declare done before it

When to use

• before any non-trivial Blender recipe
• when previous attempts drifted into endless polish or scope creep
• before runtime work (so "Verified" claim is honest)

When not to use

• pure exploration / brainstorming (no stop condition; goal is divergence)
• tiny single-shot requests
• after work has already started without scope (use blender-scope-boundary-enforcer instead)

Trigger phrases

• "when are we done"
• "let's set the bar"
• "what does done look like"

Prerequisites / readiness

• recipe scope clear (or willing to clarify)
• user accepts a written stop condition

Input schema

Required inputs

Input	Why it is required
Recipe scope	Anchors the stop condition
Acceptable quality bar	Determines what "done" means concretely

Optional inputs

Input	Use
Time / budget constraints	May force tighter scope
Reference deliverable	Calibrates the bar

Assumptions to confirm

• The user accepts that "done" is the stop point, not a temporary plateau before more polish.
• Ambiguous "done" → not yet ready to start.

Output schema

Primary output

A single stop condition record: condition (one sentence), out-of-scope list, handoff trigger.

Secondary output

• explicit guardrails: what would NOT count as done
• review hint after stop condition fires

Evidence / caveat output

Runtime status: Not Run | Attempted | Produced | Verified | Failed | Blocked / Not Run
Artifact status: Not Run | Not Produced | Produced | Verified | Failed
Evidence used: <links, paths, logs, or "none">
Limitations: <known gaps>

Required laws

• ../../laws/evidence-before-done.md
• ../../laws/non-blender-user-language.md
• ../../laws/no-arbitrary-python-interface.md
• ../../laws/official-runtime-only.md

Official runtime boundary

Process / discipline skill — does not run Blender. Stop condition is evaluated against produced evidence.

Operating procedure

1. Confirm recipe scope.
2. Write one concrete stop condition.
3. List 3-5 things that are explicitly OUT OF SCOPE for "done".
4. Pin handoff trigger.
5. Enforce: do not polish past it; do not declare done before evidence supports it.

Decision tree

Stop condition vague ("looks great")?
  → Rewrite with concrete artifact + check
Multiple stop conditions proposed?
  → Pick the highest-priority one; relegate others to follow-up scope
Stop condition not yet evaluable in this mode?
  → Mark as forward-condition; do not declare done in this stage

Playbooks

Playbook A: Hero render

"Done = out/render-2026-05-09.png exists at 1920×1080, 128+ Cycles samples, mood matches brief, validation logged."

Playbook B: GLB handoff

"Done = out/scene.glb exists, gltf-validator passes, triangle count within budget, animation contract documented."

Playbook C: Text-only plan

"Done = scene plan section count >= 7, all sections concrete, asset list flagged, handoff to scene quality checker."

Mode handling

Text-only mode

Stop condition refers to plan completeness; runtime claims marked Not Run.

Runtime-ready mode

Stop condition refers to produced + validated artifacts.

Blocked runtime mode

Stop condition is reframed as "ready to start once runtime is available"; do not declare done.

Validation checklist

• Stop condition is one sentence
• Stop condition is concrete (no "looks good")
• Out-of-scope list (3-5 items) present
• Handoff trigger named
• Mode-appropriate phrasing

Pass / Warn / Fail rubric

Verdict	Criteria
Pass	One concrete stop condition + out-of-scope + handoff.
Warn	Stop condition present but slightly soft; out-of-scope partial.
Fail	Vague "looks good" stop condition; no out-of-scope; no handoff; multiple conditions stacked.

Failure handling

• Vague stop condition → rewrite.
• Multiple conditions → pick one + scope follow-up.
• User pushes for "more polish" past the condition → require new scope agreement.

Troubleshooting

Problem	Response
User wants "perfect" before stopping	Rewrite condition with concrete bar; document that "perfect" is forward scope.
Stop condition keeps moving	Mid-recipe scope drift; hand off to blender-scope-boundary-enforcer.
Done declared without evidence	Downgrade per evidence-before-done.md; require evidence.

Best practices

• One sentence, one stop condition, one recipe.
• Write the condition BEFORE work begins.
• Out-of-scope is at least as important as in-scope.
• "Done" is honest, not optimistic.

Good examples

• "Done = out/render.png at 1920×1080 + 128 Cycles samples + mood match validated against reference image diff < 5%. Out of scope: animation, post-process, alternate lighting takes."

Bad examples

• "Done when it looks great." — vague.

User-facing response template

Recipe: <name>
Stop condition (one sentence, concrete): <…>
Out of scope for "done":
  - <…>
  - <…>
  - <…>
Handoff trigger: <skill>
Mode: <text-only / runtime-ready / blocked>
Limitations: <gaps>

Anti-patterns

• Multiple stacked stop conditions.
• Vague language.
• Letting "done" drift across the recipe.
• Declaring done without evidence.

Cross-skill handoff

• Brief → ../intent-to-3d-brief-writer/SKILL.md
• Workflow gates → ../blender-checklist-driven-workflow/SKILL.md
• Final pre-handoff → ../pre-handoff-verification/SKILL.md
• Scope drift → ../blender-scope-boundary-enforcer/SKILL.md

Non-goals

• Run Blender.
• Author the recipe.
• Polish past the stop condition.

References

• references/stop-condition-templates.md
• references/out-of-scope-patterns.md
• references/done-vs-perfect.md
• ../../docs/skill-system.md