runbook-tutorials/docs/pack-spec.md

Runbook pack specification v0.1

A runbook pack is a directory runbooks/<pack-dir>/ in the repository that owns the procedure. It contains pack.yaml, validated by schema/runbook-pack.schema.json, plus optional supporting files. The engine discovers packs by scanning runbooks/*/pack.yaml under a repository root, or under any root given on the command line.

Manifest

Field	Required	Meaning
spec	yes	Literal runbook-pack/v0.1
id	yes	Stable dotted id, lower-case, e.g. nk.ssh-certificates
title, outcome	title yes	What the operator is doing; what is true afterwards
owner	yes	The repository that owns the procedure
exercise_status	yes	unexercised or exercised YYYY-MM-DD by <operator>
engine	yes	native or legacy-command
parameters	no	Operator-supplied, non-secret values
prerequisites	no	{text, owner} list
steps	native	Ordered steps (below)
threat_checks	native	What must never be logged, committed or pasted
ownership	no	Concern-to-owner table
legacy	legacy	How to launch the existing console

Parameters

Each parameter has id ([a-z][a-z0-9_]*), label, type (string|enum|path|bool|int), optional values, default, pattern, help. secret may only be false: a parameter is never a secret. Steps refer to parameters as {{id}}. An undefined placeholder, an unused parameter, an enum without values, or a default that violates its pattern/values is a validation error.

Steps

Every step has id, title, owner (the repo or tool that does the work), and verify. Optional: description, command (a template shown to the operator, copyable, never run by the engine unless a future execution mode is enabled for that step), risk (read-only|changes-state|attended|destructive), rollback, evidence.

verify is mandatory, so a runbook cannot be prose only:

• done_when: the observable outcome, in words;
• command and expect (manual|exit-0|output-contains, with contains).

A step with risk of changes-state, attended or destructive must state a rollback (which may say "not reversible" and why).

Exercise status

Following the attended-procedure standard, a pack is unexercised until an operator has completed it, and the operator is recorded. The engine displays the status prominently and only the engine's evidence writer changes it.

Secrets

The engine must not collect, store, log or transmit secret values. The validator rejects manifests containing secret-looking markers (hvs.…, private-key blocks, otpauth://).

Legacy packs

engine: legacy-command wraps an existing guided console unchanged. legacy.command is the argv to launch, legacy.cwd is relative to the pack root's repository, legacy.url is where the console serves. The engine lists, describes and launches it; it does not interpret its internals. Migration to native is optional and per pack.

Versioning

spec names the version. A change that invalidates existing packs raises the version; the engine keeps loading older versions it declares support for.