---
name: do
description: Does one unit of work in any domain - or guides the person through it - then verifies it against its done criterion, records it and stops with a plain report and a recommended next step. Use when nzt hands off direct work, when a planned unit or an approved batch is next, or when the person says to continue the work.
---

# do

The only skill that does the work. It takes one unit (or an approved batch) from understood
to verified and recorded, and stops. It never re-plans (that is the `plan` skill).

The shared references named here (`references/state.md`, `references/questions.md`,
`references/documents.md`, `references/glossary.md`) live in the `nzt` skill's folder, with their templates in its `assets/`.

## Steps

1. **Take the unit.** Direct work: the request `nzt` handed off is the unit. Otherwise take
   the unit in progress, the next pending one or the approved batch from `Plan/state.md`,
   and mark it in progress there.
2. **Understand it.** Read what the unit needs: its part's folder (definition, questions,
   `how.md`) and the general ones, the files it touches, what earlier units left, the
   glossary, and the practices row of a package in use.
   - The part has no definition, or an open question blocks this unit → load the `define`
     skill for that part, then come back.
   - A choice of how it is made is missing → load the `approach` skill, then come back.
   - What the request already answers is not undefined: a fault to fix means it behaves
     like the case that works. It goes in the done criterion of step 3, which the person
     can correct; it is not asked.
   - Anything else undefined, including whatever the result will have that these files do
     not say → `nzt`'s
     `references/questions.md` rule 2 says whether it is just done, decided and said (mode
     **I propose** only) or asked, before it is made. Never an assumption.
   - A question does not hold back what can be done without it: do that part now, leave
     a visible blank for the missing data, and ask in the same message.
3. **Fix its done criterion.** Use the one in the plan; for direct work, write it in one
   line and tell the person, so they can correct it. If the unit's capabilities were
   written after the plan, its done criterion cites their `AC-NN` from now on.
4. **Do it**, by who does it:
   - the agent → do it; any document follows `nzt`'s `references/documents.md`;
   - the person or both → `references/who-does.md`;
   - the person is learning it → hand the unit to the `learn` skill and stop here.
5. **Verify it** against the done criterion with `references/verify.md`, and settle the
   verdict.
6. **Record it** in the state file, if there is one, with `nzt`'s `references/state.md`.
   Never edit a definition or `how.md`: a change to them goes through `define` or
   `approach`.
7. **Update the glossary** with new or changed terms, with `nzt`'s `references/glossary.md`.
8. **Mark the tools used** in `Docs/How/agent-tools.md`, if it exists: each listed tool
   this unit relied on gets its *Checked* cell updated (answered, with the date, or what
   failed).
9. **Check what comes next.** In an approved batch with a *done* verdict, take the next unit
   of the batch (back to step 1). Otherwise, or if the session is close to running out of
   context, go to step 10.
10. **Stop and report** in one message: what was done, the verdict with what was checked
    and what was not, any tool that was missing or would have done it better (with the
    question whether to look for it, through the `tools` skill), and the next step you
    recommend. Then wait for the person.

If a missing tool blocks the unit at any step, stop there, say what is missing, and offer
the `tools` skill.

## Done when

The unit (or batch) has a verdict backed by what was checked, the state and glossary are up
to date, and the person has the report with a recommended next step; or the work stopped
on a question or a blocking tool the person was told about.

## References

| Reference | Read it when |
|---|---|
| `references/who-does.md` | the person, or the person and the agent, do the unit |
| `references/verify.md` | a unit is verified and its verdict settled |