Postmortem Maker

Produce a postmortem that never pretends unknowns are facts. The supplied incident fragments are the only evidence; the drafting agent separates what happened from what is suspected, and deterministic code verifies every claimed fact against the fragments. Publication is a gated proposal, never an effect of this skill.

Procedure

1. Native data.digest binds the exact fragment set.
2. The drafting agent assembles a summary, an evidence-cited timeline, a root cause with a status of known, suspected, or unknown, open unknowns, and owned action items.
3. Deterministic enforcement checks every timeline entry and any non-unknown root cause: the cited fragment must exist and the quote must appear verbatim in that fragment's text. An invented citation refuses the whole run. Action items must carry an action and an owner.
4. The verdict separates completeness from honesty: a fully cited postmortem with a supported root cause and no open unknowns is publishable and carries a publish proposal gated on a human approver through send-as; a grounded but incomplete one seals needs_more_evidence and publishes nothing.

To build the fragment set from live systems, compose web-fetch or data-store reads upstream; the digest binds whatever evidence was supplied. incident-commander owns running the incident; this skill owns explaining it afterward.

Output

postmortem (runx.postmortem.v1) carries decision (publishable, needs_more_evidence, refused), summary, the cited timeline, root_cause, unknowns, action_items, the gated publish_proposal or null, validation, and the fragments digest. publish_performed is always false.

Inputs are incident_ref and incident_fragments.

Agent task contracts

postmortem-maker-draft

Read incident_ref and incident_fragments from step inputs. Return postmortem_draft with summary, timeline entries (each entry, fragment_id, quote), root_cause (status, and for known or suspected a statement, fragment_id, and quote), unknowns, and action_items (each action, owner). Quote fragments verbatim, mark anything the fragments do not support as unknown rather than asserting it, and never invent fragments, quotes, owners, or deadlines.