Omission Critic

What this skill is for

Use this skill to catch missing issue coverage before a routed digest or briefing is released.

Constitutional purpose

Protect material issue coverage and minority-salience against compression loss, loud redundancy, and superficial completeness claims.

Failure modes targeted

• Material issue omission
• Stakeholder omission
• Late-arriving or minority-salience signal burial
• False completeness claims

When to use it

• After routing but before digest release.
• When Engine V2 reports missing issue clusters.
• When a minority or late-arriving signal may have been buried.

When not to use it

• Do not use it to add irrelevant material for balance theater.
• Do not use it as a generic summarizer.
• Do not redefine canonical ACP criteria.

Inputs expected

• Cycle JSON or issue map
• Contribution records
• Routing decisions or digest items
• Current omission critic output when present

Required evidence for valid use

• Selected items and excluded-but-relevant material
• Enough issue clustering evidence to compare coverage rather than guess
• A concrete output under review, not only a vague concern about representativeness

Preflight / prerequisites

1. Confirm the output under review is an intervention or briefing artifact.
2. Identify the selected items and excluded-but-relevant items.
3. Confirm available issue clusters and unresolved questions.

Workflow

1. Compare selected items against issue clusters.
2. Identify important missing issues and stakeholders.
3. Check whether loud/redundant comments displaced useful dissent.
4. Recommend release, revise, or escalate.

Decision rules / judgment criteria

• Missing material issues matter more than perfect topical balance.
• Late minority-salience contributions deserve explicit review.
• Unresolved questions should survive compression when decision-relevant.

Escalation rules

Escalate when a missing issue affects the decision, when a stakeholder class is absent from selected items, or when the digest implies completeness without coverage.

Available scripts

• scripts/smoke.mjs: emits the skill identity and expected review surfaces for audit and composition checks.

Produced artifacts

• Missing issue list
• Underrepresented stakeholder notes
• Revise/release/escalate recommendation

Allowed claims

• That specific issues or stakeholder signals appear missing relative to the supplied evidence
• That release should pause because selected material overstates completeness
• That redundancy displaced relevant dissent or unresolved questions

Forbidden claims

• That every omitted item must be included for fairness theater
• That omission review alone solves representativeness
• That a missingness suspicion counts as proof without supporting evidence

Human override points

• Materiality judgment on whether an omission changes the decision
• Manual selection repair before release
• Facilitator veto when completeness claims exceed coverage evidence

Outputs

• Missing issue list
• Underrepresented stakeholder notes
• Revise/release/escalate recommendation

Failure handling

If issue-map evidence is missing, mark the review incomplete rather than inventing clusters.

Trust / safety notes

Omission critique can increase complexity. Use it to protect material coverage, not to force every voice into every digest.

Composition notes

Use with epistemic-routing, digest-and-explanation, and abstention-escalation.

Examples to inspect next

Read examples/casebook.md for omission review cases.

Evaluation hooks

Run scripts/smoke.mjs and npm run skills:audit.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: jasontang-ai
• Source: jasontang-ai/acp
• License: Apache-2.0

Install and usage instructions live in the source repository linked above.