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l0ng-ai
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`skills add` does not refresh a skill that is already installed, so the one install line left existing users with no documented way forward. Add the `skills update tty7` counterpart to both READMEs and give the agent-skill page a short Updating section covering update and remove.
98 lines
3.5 KiB
Plaintext
98 lines
3.5 KiB
Plaintext
---
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title: "The agent skill"
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description: "Teaching a coding agent to use tty7 properly — including when not to."
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---
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The CLI is only half of the story. An agent has to know *when* reaching for a
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pane beats running a command, and — more importantly — which panes it must not
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touch. That is what the skill is for.
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## Installing it
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```bash
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npx skills add l0ng-ai/tty7
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```
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The source lives at
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[`skills/tty7/`](https://github.com/l0ng-ai/tty7/tree/main/skills/tty7) in the
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repository: a `SKILL.md` and a full command reference.
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<Note>
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This is the only skill tty7 has — nothing in **Settings → Agents** installs
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one for you. Using the CLI to run *other* agents — a worker pane, `tty7 wait`,
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collecting the result — is covered separately.
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[Orchestration →](/agents/orchestration)
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</Note>
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## Updating it
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`add` does not refresh a skill that is already installed — updating is its own
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command, and the skill is named `tty7`:
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```bash
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npx skills update tty7 # this one
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npx skills update # everything you have installed
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```
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The CLI records where each skill came from, so `update` re-downloads only what
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has drifted. `npx skills remove tty7` takes it back out.
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## What it teaches
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### When to use a pane instead of a plain command
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The Bash-style tool an agent already has is right for anything that starts, does
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its job, and exits. A pane is right when:
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- **It should not block.** A dev server, a watcher, `tail -f`, a long test run.
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- **It is interactive or stateful.** A REPL, `ssh`, a database shell — anything
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where you send, read, then send again. A pane keeps the session alive between
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turns; a one-shot call cannot.
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- **It needs a real TTY.** Programs that detect a pipe and change behaviour —
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colour, progress bars, TUIs, `top`, raw mode.
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- **The user should be able to watch.** Anything in a pane shows up live in
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their window. That is often the whole point.
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- **You are being asked about something you did not start.** "What's running in
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that pane?", "why is port 3000 taken?", "what are my agents doing?"
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### The safety rules
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<Warning>
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The panes on this machine are the user's real work, and some of them are other
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coding agents mid-task. Anything the agent did not create is read-only.
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</Warning>
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- **Never `send` into a pane you did not open.** Keystrokes land in the middle
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of whatever is happening there. Check `tty7 agents` first.
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- **Never close a pane, tab, or workspace you did not create.**
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- **Never `server stop` or `server restart`.** Every pane on the machine dies
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with the server, including yours.
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- **Never `tty7 server start` on your own initiative** when `doctor` says the
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server is unreachable — starting one the user did not ask for changes what
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their GUI attaches to. Tell them instead.
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- **Clean up what you did create.** `tty7 pane close %83` when the scratch pane
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is done with.
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### The reliable idioms
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Rather than screen-scraping, the skill points agents at the primitives that
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actually answer the question:
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```bash
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# is it finished? — when only the depth-0 shell is left, yes
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tty7 procs %83 --json
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# the answer, not the view
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tty7 send "$PANE" 'cargo test > /tmp/t.log 2>&1; echo $? > /tmp/t.rc' --enter
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# wake up exactly when the other agent needs something
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tty7 wait %3 --until waiting,done --changed --timeout 600
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```
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## For humans writing their own tooling
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The same material is worth reading even if you are not an agent — it is the
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shortest description of how to use tty7 as a job runner. Start with the
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[CLI overview](/cli/overview), then the
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[command reference](/cli/reference).
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