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---
title: C2 — Startup Side-Effects
---
These run automatically without any user action. Disabling
`__fish_config_op_autoexec` prevents all of them.
Component Trigger What it does
───────────────────────────────────────────────────────────────────────────
Fisher bootstrap First shell only Downloads and installs fisher
Fisher update After bootstrap Installs all fish_plugins entries
Catppuccin Mocha theme First shell only Applies theme via fish_config
paru wrapper Every startup Writes ~/.local/bin/paru wrapper
yay wrapper Every startup Writes ~/.local/bin/yay wrapper
Python venv activation On every cd Sources .venv/bin/activate.fish
WakaTime command hook On every command Reports to WakaTime API
Auto-pull fast-forward On entering a repo Background ff-only git pull
user-dots symlink Every startup Links $__fish_config_dir/user-dots
to $__fish_user_dots_path
When C2 is disabled: no Fisher install, no theme application, no paru/yay
wrapper generation, no automatic venv activation, no WakaTime reporting,
no auto-pull (the PWD handler is never registered), and the user-dots
convenience symlink is not created. The symlink is git-ignored and only ever
managed as a symlink — a real file or directory at that path is left untouched.
The symlink has its own opt-out independent of C2: set `__fish_user_dots_symlink`
to a falsy value (or toggle "Dots link" off on the config-settings Paths page)
to stop generating it and remove any existing link — honoured even when C2 is
enabled. Managed by the `__fish_user_dots_link` helper.
The first-run completion marker (`__fish_config_first_run_complete`) is still
set so the init does not re-run on subsequent shells.
Python venv activation fires on every directory change. If a directory uses
direnv (`.envrc` present), direnv takes priority and auto-venv is skipped for
that directory.
Auto-pull fast-forwards opted-in repositories in the background when you cd
into them. The fish-config repo is always covered; other repos are added with
the `auto-pull` command (see its entry in the functions reference). It only
ever fast-forwards a clean repo whose branch has an upstream — never rebases,
merges, or overwrites work — so it is a no-op on dirty trees, divergent
branches, or repos without a remote. The handler fires once per repo entry
(not on every sub-directory `cd`). The registry is machine-local at
`$__fish_user_dots_path/auto-pull.list` (defaults to `~/.config/.user-dots/fish/auto-pull.list`) and is never committed.
## Sub-categories
`__fish_config_op_autoexec` sub-divides into five sub-categories, each
with its own `__fish_config_op_autoexec_<slug>` toggle:
## plugin-management
Fisher bootstrap on first run.
## pkg-wrappers
`paru`/`yay` wrapper generation.
## venv
Automatic Python virtualenv activation.
## telemetry
The WakaTime hook's startup bootstrap.
## sync
Auto-pull background fast-forward, and the user-dots convenience symlink.