8. FISHER PLUGINS

Fisher is bootstrapped automatically on the first interactive session via conf.d/first_run.fish. This also applies the Catppuccin Mocha theme and prints a one-time welcome message (gated by __fish_config_op_greeting; set it to 0 to suppress). Subsequent sessions skip all first-run logic with zero overhead.

To re-trigger first-run initialization (e.g., after a fresh install or for testing), run:

set -Ue __fish_config_first_run_complete

Then open a new shell.

Fisher-Managed Plugins

The following plugins are fully managed by Fisher. Their files are installed into the repo directory by Fisher and are listed in .gitignore — do not commit them. Fisher installs and updates them automatically.

jorgebucaran/fisher           Plugin manager itself
meaningful-ooo/sponge         Remove failed commands from history

Sponge History Filtering

Sponge removes failed commands from history and, via conf.d/sponge_privacy.fish, also filters privacy-sensitive commands through three layers:

Layer 1 — Static patterns (universal, persistent across sessions): Commands matching any of these structural signatures are never recorded:

--password / --token / --passphrase / --api-key flags with values
Inline env assignments: GITHUB_TOKEN=xxx, MY_API_KEY=abc
Fish set with sensitive names: set -gx GITHUB_TOKEN xxx
URLs with embedded credentials: https://user:pass@host
HTTP Authorization headers: curl -H "Authorization: ..."
Basic auth flags: curl -u user:pass
sshpass, docker login -p, openssl -passin/-passout

Layer 2 — Dynamic secret values (session globals, refreshed each login): On the first prompt, after secrets.fish has loaded, the literal values of all exported variables whose names suggest credentials (TOKEN, PASSWORD, SECRET, API_KEY, etc.) are collected, regex-escaped, and added as a session-scoped overlay. Because globals shadow universals in Fish, the combined list is what sponge sees. Rotating a token takes effect on the next login automatically.

Layer 3 — Per-command filter (sponge_filter_secrets): Catches credentials in variables exported after login, such as tokens sourced from a project .env file mid-session.

To add your own persistent patterns:

set -U -a sponge_regex_patterns 'your-regex-here'

To mark additional variable NAMES as credential-bearing (so Layer 2 scrubs their values), add name tokens — via config-settings → Sponge, or directly:

set -U -a __fish_sponge_extra_sensitive ACME_API VAULT_PW

Tokens are folded into the Layer 2 name match case-insensitively as substrings, so ACME_API also covers ACME_API_KEY. (The match uses --entire to return the full variable name, so partial-name tokens dereference the right value.)

The config-settings Sponge page also surfaces sponge's own tuning variables — sponge_delay, sponge_successful_exit_codes, sponge_purge_only_on_exit, and sponge_allow_previously_successful — so they can be changed without typing variable names.

Bundled Plugin Functionality

The remaining plugin functionality is bundled directly with this config rather than managed through Fisher. The bundled versions include customizations for Fish 4.x compatibility and improved behavior that differ from their upstream releases. Installing them through Fisher would overwrite these customizations.

Bundled components and their upstream origins:

catppuccin/fish               → themes/ + conf.d/theme.fish
PatrickF1/fzf.fish            → functions/_fzf_*.fish + conf.d/fzf.fish
franciscolourenco/done        → conf.d/done.fish
jorgebucaran/autopair.fish    → functions/_autopair_*.fish + conf.d/autopair.fish
nickeb96/puffer-fish          → functions/_puffer_fish_*.fish + conf.d/puffer.fish

Do not run fisher install for these — it will overwrite the customized versions. To update their behavior, edit the relevant bundled files directly.

fish_plugins Manifest

The fish_plugins file at the config root:

jorgebucaran/fisher           Plugin manager itself
meaningful-ooo/sponge         Remove failed commands from history

To update all Fisher-managed plugins, run fisher update or fish-deps update which calls it as its first step.