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gstack/docs/proactive.md
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2026-10-26 21:10:17 +00:00

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# Proactive skill suggestions
gstack notices what stage you are in (a new idea, a diff to review, "does this
work?", time to land it) and can invoke the matching skill without you typing
its slash command. The `proactive` config key says how far that goes.
| Value | What auto-invokes | Who it is for |
|-------|-------------------|---------------|
| `core` (default) | `/office-hours`, `/review`, `/qa` and `/ship` only. Every other skill waits for you to type it, unless a skill you ran hands off to it (`/office-hours` offering the next review). | Most people, and anyone running gstack beside another skill pack: the four core skills are the ones users praise, and the others no longer compete with another pack's niche skills. |
| `all` | Any skill whose purpose matches your request. | You use gstack on its own and want the whole sprint suggested. |
| `off` | Nothing. gstack never suggests or auto-invokes a skill, not even by asking "want me to run /X?". | You type every command yourself. |
`true` and `false` still work as the older spellings of `all` and `off`, so a
config written before the `core` default keeps its behavior; `gstack-skill-start`
reports them to the skill as `all` and `off`. A hand edit may be quoted, upper-case
or commented (`proactive: "OFF" # mine`), and the YAML yes/no family (`yes`, `on`,
`1`; `no`, `none`, `0`, `disabled`, `never`) reads as `all` or `off`, in
`gstack-config set` as well, so a typed opt-out never fails open.
```bash
gstack-config get proactive # core, all, off (or a legacy true/false)
gstack-config set proactive all # suggest every matching skill
gstack-config set proactive off # suggest nothing
gstack-config set proactive core # back to the default
```
A skill you name is always invoked, whatever the setting, and so is a skill that
a running skill invokes itself (`/ship` dispatching `/document-release`). The
setting governs unasked suggestions, and an in-skill *offer* to run another skill
is one: under `off`, `/office-hours` recommends the next review in one line
instead of offering to launch it, and the one-time first-run
tips stay quiet. The change takes effect on the next skill run; no `./setup` is
needed, because every skill reads `PROACTIVE` from `gstack-skill-start` at the
start of each run and the router (`/gstack`) applies it to its routing rules. A
value gstack does not know (a hand-edited `proactive: maybe`) reads as `core`.
Two surfaces follow the setting only in part. The first is the `## Skill routing`
section gstack offers to append to your project's CLAUDE.md. Under `off` the offer is
not made, because those rules are the auto-invocation you turned off (a section
already in CLAUDE.md stays; delete it yourself). Under `core` the offered
section still lists every routing rule and tells the host to invoke any
matching skill. If you accepted it before the `core` default, trim that section
to the four core rules (or delete it and let gstack offer it again); making the
offered section follow `core` is tracked in #3446.
The second is the full skill descriptions, which a `--catalog-mode=full` build
and the non-Claude hosts keep. Non-core skills still say "Proactively suggest
when ..." there, and that text does not change with the setting, so a host
that picks skills from those descriptions can still reach them under `core`.
The default Claude build uses one-line descriptions without that sentence.
#3446 tracks that too.
gstack asks once, after the telemetry question, which of the three you want;
if you stored `off` before that, it takes the answer as given and does not ask.
"Say stop suggesting" in a session runs `gstack-config set proactive off` for you.
If collisions with other skill packs keep coming up under `core`, the fallback
Garry approved on 2026-10-25 is `off` by default.
## Questions a skill asks on its own
The setting above governs which skills gstack offers unasked. A second rule
governs what a running skill may ask you unasked: a question whose answer the
skill could observe is not yours to answer. Whether a change is faster, whether
two renders differ, whether an endpoint accepts a payload, whether a test still
fails: each of those is settled by running the thing (time it, render both,
call it, run the test) and reporting the result, not by a prompt. The only
questions that come to you are product and preference calls (what the product
should do, what you want, what you are willing to spend or risk), and they
arrive with the observation already in hand so the choice is between measured
options. `/plan-tune` applies the same rule when it audits the question log: an
observable question is a defect in the asking skill, not a preference to tune.