Context Guardian

Use this skill to keep long-running agent work resumable, loss-aware, and safe. Use it when a task may outlive one model context window or when a host must stop safely before context loss causes bad decisions.

Execution

For the Agent — Mandatory Runtime Contract

Follow this order. Do not skip steps.

Required startup reads

Read these before acting:

1. references/task-state-schema.md — required task-state fields.
2. references/summary-template.md — required summary shape.
3. The host-configured durable task state file.
4. The host-configured structured summary file, if it exists.