git:20260909.3784459 to git:20260910.592db5c

20 added, 8 removed. Audit A to A.

---
name: dough-slice-planning
description: >-
Plans one understood, bounded story as an executable sequence of
Behavior/Structure slices with outside-in proof and safe stopping points. Use
when a selected story is ready for implementation planning. Recommends
dough-slice-plan-refinement only for complex, low-confidence, or over-budget
slices; does not implement the plan.
---
# Slice planning
Write one sufficient executable plan for one understood story. Do not implement
product code.
## Require an understood story
Require one user or stakeholder outcome, its value, evaluable key examples, and
boundaries from later stories. Use
[dough-story-refinement](../dough-story-refinement/SKILL.md) when the selected
story's goal, scope, or examples are unresolved. Use
[dough-story-decomposition](../dough-story-decomposition/SKILL.md) when the
parent problem, candidate selection, or story ordering is unresolved. Never
turn a decomposition seed directly into an execution plan.
## Resolve execution context
Before writing, identify from the user's instructions and this project's guidance:
- the selected story and its seed, when one exists;
- - the executable-plan path, format additions, status vocabulary, and lifecycle;
- - the project's slice target and hard limit, including permitted
+ - the executable-plan root, filename layout, format additions, status
+ vocabulary, and lifecycle;
+ - any supplied slice target and hard limit, including their permitted
exceptions and overrun escalation;
- required verification, refactoring, commit, and review gates;
- relevant code, tests, stack rules, and Accepted ADRs; and
- any phase or quick-task conventions that own the plan.
- Resolve these from this project, not this skill's location. If the
- plan destination or slice budget is unavailable, name the missing
- context and stop before writing or claiming sizing readiness. Do not create a
- new plan under a deprecated or merely inferred location.
+ Resolve these from this project, not this skill's location. First reuse a plan
+ that is active under this project's status vocabulary and identifies the
+ selected story. Otherwise, inspect the established plan entries in the known
+ root: use the number after the highest allocated entry, preserving its numeric
+ padding and path layout rather than filling an old gap. Immediately before
+ writing, recheck the candidate path. If it is occupied, leave it unchanged,
+ advance to the next number, and check again. Do not add allocation or locking
+ tooling.
+ If the canonical plan root is unavailable, name that missing context and stop
+ before writing; do not ask for a plan number or invent a location. A missing
+ numeric limit alone is not missing context: apply the linked sizing guidance
+ without inventing a timing policy. Do not create a new plan under a deprecated
+ or merely inferred location.
+
## Write the plan
Record the source, goal, included scope, material exclusions, assumptions, and
key examples without enlarging the story. Read and apply:
- [slice decomposition](../dough-story-decomposition/references/problem-decomposition.md#decompose-slices),
including its sizing and escalation rules; and
- [executable-plan decisions](../dough-story-refinement/references/planning.md#write-an-executable-plan),
including executable proof ownership.
Inspect only the code and tests needed to find the stable outside-in proof entry
point, behavior to extend, genuine dependencies, and any Structure needed
immediately before the first Behavior.
For a concrete uncertain infrastructure or storage assumption, reuse matching
evidence or require one isolated representative proof against the relevant
engine and version. Record the assumption, literal command, critical
postcondition, and result in the plan. Failed proof changes the plan before
broad implementation. Keep experiments off shared and production systems.
Use [dough-slice-plan-refinement](../dough-slice-plan-refinement/SKILL.md) only
when the reference's refinement conditions apply:
- - If all slices are cohesive, have one proof loop, meet this project's target,
- and have no unexplained hard-limit path, report `ready for direct execution`.
+ - If all slices are cohesive, have one proof loop, meet any supplied target,
+ and have no unexplained path beyond a supplied hard limit, report
+ `ready for direct execution`.
- If any trigger remains, report
`refinement recommended: <affected slices>`. Do not claim an execution-time
guarantee.
Report the plan path, ordered slices, considered-but-excluded additions, and the
readiness result. End with:
`## SLICE PLAN WRITTEN`