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paperclip-harness/docs/STARTUP.md

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Starting a project: the commands and the rule

These commands are on your PATH as office, board, merge, review, triage and project-reset. Each is a two-line wrapper in ~/.local/bin that runs the real script in this repository — a wrapper, not a symlink, because a symlinked script resolves its own directory to ~/.local/bin and then cannot find its siblings. The previous project's wrappers were moved to ~/.local/bin/.old-harness/, not deleted.

Replaces the previous project's four commands. There are three now, and one rule that removes most of the confusion.

The rule

The folder and the session live on the same machine. If you are typing inside a session, on the machine that owns the folder, you type bin/office <folder> and nothing else.

--host exists for exactly one case: the folder is on a different machine from the shell you are typing in. It is stated once; after that the project file remembers it.

The three commands

What you want Command
adopt a folder bin/office <folder> --project "<Paperclip project name>"
adopt a folder Paperclip has never seen bin/office <folder> --new "<Name>"
adopt a folder that lives on another machine bin/office <folder> --project "<Name>" --host nixos-desktop
repair or rebuild the panes bin/board, bin/board --replace, bin/board --reset
close everything and start again bin/project-reset <folder>

Nothing else is needed. In particular you do not create the session by hand any more: the previous design needed tuios new --host … because office could not create a session. This one can, through the daemon's own verb, so the second command is gone.

What bin/office does, in order

  1. Reads the folder. If another machine is named, checks first whether that name is this machine, and runs locally if it is. (The previous version once tried to ssh to itself.)
  2. Resolves a host name to an address ssh can reach: nixos-desktop/.13 → 192.168.20.13, sam-4screen-desktop/.27 → 192.168.20.27, sam-thinkpad/.51 → 192.168.20.51.
  3. If it really is another machine: tests the login with ssh -o BatchMode=yes <address> true, then runs the same command there, and prints how to attach.
  4. On the machine that owns the folder: creates the Paperclip project if --new was given, or adopts the existing one; writes .harness/harness.toml, check.sh, NOTES.md — never overwriting anything that exists. Before the remote run it copies this folder's commands to the other machine at ~/.local/share/paperclip-harness/bin/ and leaves a short ~/.local/bin/office there, so nothing has to be installed by hand. On .27 and .51 ~/.local/bin is not on PATH yet, so there the command is called by its full path.
  5. Creates the session if it is missing, on that machine's daemon.
  6. Builds the eight panes, in order, each pane claimed by workspace name.

The last step it cannot do is show you the session. A program may not move your client: the daemon refuses switch-session from a pane. Switch with TUIOS's own session switcher, or tuios attach --host <machine> <session>.

The three rebuild levels

Command What it does
bin/board creates what is missing, closes nothing
bin/board --replace closes this project's panes, then builds all eight again
bin/board --reset closes every pane in the session, waits for none to remain, clears the workspace names, then builds

--reset exists because --replace on a half-built session can run out of workspace slots and leave pages missing.

Inside a pane, R in Repair>repair rebuilds everything; B only adds what is missing.

Traps this design keeps from the previous one

  • A pane's command must carry the project, or a rebuild shows the wrong one.
  • Compare a host name against this machine's own names and addresses before ssh, or you log in to yourself.
  • Never store a workspace number; TUIOS deletes an emptied workspace and renumbers the rest.
  • A pane that never exits keeps a workspace alive. Shell>shell is that pane here.
  • Scripts resolve their own directory with realpath, so a symlinked wrapper still finds its siblings.