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Work Slice Spec Bundle

Goal

Define an optional specification bundle for AletheIA Work Slices that need more clarity before execution.

The bundle helps a slice make ambiguity, requirements, technical decisions, tasks, and readiness evidence reviewable without turning AletheIA into a heavyweight delivery methodology.


Core rule

The Work Slice remains the operational unit.

The spec bundle is only an optional artifact group inside a Work Slice. It is not a new lifecycle, a new state machine, or a replacement for the task brief, decision record, execution record, handoff, restart package, or learning record.

Healthy reading:

Work Slice -> optional spec bundle -> execution / validation / closeout

Unhealthy reading:

Spec bundle -> project lifecycle -> every task must fill every document

Why this exists

AletheIA already has:

  • Work Slices as bounded operational units;
  • planning-depth profiles;
  • readiness gates;
  • task briefs and work-slice templates;
  • handoff and restart discipline.

What is still useful for some Standard and High-Assurance slices is a clearer intermediate bundle between initial framing and execution.

The bundle is meant to reduce four common failure modes:

  1. implementation begins while requirements are still implicit;
  2. technical choices appear before the what and why are clear;
  3. tasks become a backlog instead of an executable slice plan;
  4. readiness review becomes a narrative claim instead of inspectable evidence.

When to use

Lite

Do not use the bundle by default.

A Lite slice should normally stay with the task brief, work-slice framing, and proportional validation.

Use one small section from the bundle only if it removes immediate ambiguity faster than a longer discussion.

Standard

Use the bundle when the slice is still bounded but has meaningful ambiguity, cross-artifact coordination, or moderate semantic risk.

Recommended artifacts:

  • spec.md
  • plan.md
  • tasks.md

readiness-review.md is optional unless review burden is already visible.

High-Assurance

Use the bundle when the slice is hard to reverse, trust-sensitive, review-heavy, or likely to cross a boundary.

Recommended artifacts:

  • spec.md
  • plan.md
  • tasks.md
  • readiness-review.md

For High-Assurance, the readiness review should instantiate existing AletheIA gates rather than define new ones.


Artifact roles

spec.md

Clarifies the what and why before the technical plan.

It should include:

  • problem and objective;
  • user, operator, or system outcomes;
  • functional expectations;
  • explicit assumptions;
  • open questions;
  • [NEEDS CLARIFICATION] items that should not be silently inferred.

The spec should avoid premature architecture, stack choices, or implementation detail unless those are already a governing constraint.

plan.md

Explains the how after the spec is clear enough.

It should include:

  • proposed approach;
  • requirement-to-decision traceability;
  • key risks and tradeoffs;
  • non-goals and stop lines;
  • validation approach;
  • boundary or handoff expectations.

A technical decision should point back to a requirement, risk, constraint, or explicit human choice.

tasks.md

Turns the plan into executable slice work.

It should include:

  • ordered checkpoints;
  • implementation tasks for the current slice;
  • validation tasks;
  • dependency or handoff notes.

Tasks should describe executable slice steps, not a roadmap, product backlog, or full project phase plan.

readiness-review.md

Instantiates existing readiness gates for this slice.

It should answer whether the slice should:

  • continue;
  • tighten;
  • review;
  • handoff;
  • escalate;
  • stop.

It should not redefine readiness gates or duplicate docs/readiness-gates-spec.md.


Clarification first

The highest-value behavior in this bundle is not the file structure. It is the discipline of clarifying before planning.

Before writing or accepting plan.md, inspect spec.md for:

  • unresolved open questions;
  • assumptions that affect architecture, risk, scope, or validation;
  • hidden decisions that would change the execution path;
  • [NEEDS CLARIFICATION] markers that should become human decisions, explicit defaults, or stop lines.

If a question changes scope, risk, or validation, do not bury it in the plan. Either answer it, tighten the slice, or route it to the relevant decision boundary.

When ambiguity affects the human-owned outcome or the meaning of success, use the optional Intent-to-Evidence extension. The spec and plan reference its confirmed Intent and Expectations; they do not redefine them.


Relationship to Adaptive Skills

AletheIA should decide when this bundle is justified and what readiness posture applies.

A companion skill library may help execute the method by:

  • eliciting clarification questions;
  • shaping the spec;
  • decomposing the plan;
  • checking for overengineering;
  • stress-testing consequential plans.

The method should stay outside the AletheIA core when it becomes specialist facilitation. AletheIA governs the slice; skills shape capability.


Anti-ceremony guardrails

Do not use the bundle to:

  • make every small task fill four documents;
  • import a full external specification lifecycle;
  • create a project backlog inside one slice;
  • duplicate the Work Slice template;
  • redefine readiness gates;
  • hide uncertainty behind polished language;
  • promote a skill method into framework core truth.

A healthy bundle is smaller than the risk it reduces.


Starter templates

Use these starter-pack templates when the bundle is justified:

  • starter-pack/templates/work-slice-spec-template.md
  • starter-pack/templates/work-slice-plan-template.md
  • starter-pack/templates/work-slice-tasks-template.md
  • starter-pack/templates/work-slice-readiness-review-template.md

For narrow slices, copy only the sections that are useful.


Suggested next reading

  • docs/work-slice-pattern.md
  • docs/planning-depth-profiles.md
  • docs/readiness-gates-spec.md
  • starter-pack/templates/work-slice-template.md
  • starter-pack/guides/risk-to-gate-mapping.md
  • examples/work-slices/standard-spec-bundle/README.md
  • docs/aletheia/closeouts/2026-05-19-spec-planning-cross-repo-closeout.md

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