> Markdown twin of https://adna.network/glossary/glossary-mission/
> Index: https://adna.network/llms.txt · Full corpus: https://adna.network/llms-full.txt
> State is a build-time snapshot generated 2026-08-30 (UTC); nothing here is live.

# Mission — aDNA Glossary

## Plain-Language Definition

A mission is a chunk of work too big for a single session. It breaks a goal into trackable objectives, each small enough for one agent session. Missions create a bridge between strategic plans (campaigns) and day-to-day execution (sessions).

## Technical Definition

A multi-session work decomposition unit that lives in `how/missions/`. A mission file MUST include: objectives, acceptance criteria, constraints, an objective list with per-objective status tracking, and dependency declarations. Agents claim objectives by [session](/glossary/glossary-session) and hand off via [SITREP](/glossary/glossary-sitrep). Missions fit into the execution hierarchy: Campaign → Mission → Objective. (aDNA Standard §9.1-§9.3)

## Usage Examples

- This vault has 19 missions (M00-M19) defined for Operation Rosetta, organized into 7 phases. Each mission file lives in `how/campaigns/campaign_rosetta/missions/` — for example, M15 (this glossary's parent mission) defines 3 objectives spanning 2 sessions.
- Mission handoff: when one session ends mid-mission, the SITREP's "Next Session Prompt" tells the next agent exactly where to pick up.

## See Also

- [Session](/glossary/glossary-session)
- [SITREP](/glossary/glossary-sitrep)
- [Convergence (concept)](/learn/concepts/convergence)