aibris

README

aibris

AI + debris. A small CLI for cleaning up the filesystem leftovers from AI coding sessions: worktrees, logs, node_modules, and build caches.

AI tools are productive, but they shed a lot of temporary state while they branch, build, test, and retry. aibris scans the places that debris tends to collect, shows a readable cleanup plan, and only deletes after filters, confirmation, and path safety checks.

Who is this for?

• Developers who use AI coding tools that create Git worktrees under $HOME
• Teams sharing development machines where worktrees accumulate
• Anyone who wants to reclaim disk space from node_modules and build caches
• AI assistants that need structured scan output before cleanup

What it cleans

Category	Examples	Default clean
AI worktrees	$HOME worktree conventions such as .tool/worktrees and project-local worktrees	Orphaned only
Dependencies	project node_modules directories	Yes
Build caches	Go, npm, Gradle, Cargo, Xcode	Yes
Python caches	pip and uv cache directories	Yes
AI logs	Codex, Claude, Cursor, Windsurf logs	Only with --risky

Install

curl -fsSL https://raw.githubusercontent.com/sungjunlee/aibris/refs/heads/main/install.sh | bash

Install from the current main branch when you want unreleased changes:

curl -fsSL https://raw.githubusercontent.com/sungjunlee/aibris/refs/heads/main/install.sh | bash -s -- main

Install a specific release:

curl -fsSL https://raw.githubusercontent.com/sungjunlee/aibris/refs/heads/main/install.sh | bash -s -- 0.5.1

The installer downloads GitHub Release binaries and verifies checksums.txt. The default install path uses GitHub's releases/latest/download URLs for prebuilt binaries. main builds from source with Go.

By default, aibris installs to ~/.local/bin and does not require sudo. If that directory is not on your PATH, the installer prints the exact command to add it for your shell. For a system-wide install, pass an explicit prefix:

curl -fsSL https://raw.githubusercontent.com/sungjunlee/aibris/refs/heads/main/install.sh | bash -s -- --prefix /usr/local/bin

Usage

aibris scan                    # discover what's taking space
aibris scan --json             # machine-readable output (see docs/JSON_SCHEMA.md)
aibris scan --root ~/.codex    # narrow scan to a home subdirectory

aibris clean --dry-run         # preview without deleting
aibris clean                   # delete with confirmation
aibris clean --root ~/.codex --dry-run
aibris clean --age 7d          # older than 7 days (default)
aibris clean --age 30d         # older than 30 days
aibris clean --age 1mo         # older than 30 days (month shorthand)
aibris clean --age 1y          # older than 365 days
aibris clean --interactive     # confirm each item
aibris clean --category node_modules   # only node_modules
aibris clean --tool codex,claude       # only specific tools
aibris clean --risky           # include ai-logs
aibris clean --include-active-worktrees # include active worktrees
aibris clean --force           # skip confirmation prompt

See docs/DOGFOOD.md for real local scan transcripts used to validate release behavior.

Example

$ aibris scan

scan
  roots  ~

  scanned  7 sources   4 items   3.2 GB

summary
  found       4 items
  found size  3.2 GB
  default clean 3.1 GB
  protected   96.0 MB active worktrees; use --include-active-worktrees after review

by category
  node_modules    1   1.8 GB
  build-cache     2   1.3 GB
  worktree        1   96.0 MB

largest
    1.8 GB  node_modules  dashboard    -                  24d
  842.0 MB  build-cache   go-build     global             9d
  512.4 MB  build-cache   npm          global             18d
   96.0 MB  worktree      b7f4c2       aibris             active today

next
  aibris clean --dry-run
  aibris scan --json

Preview before deleting anything:

$ aibris clean --category worktree --age 7d --dry-run
clean
  roots  ~

  using cached scan from 8s ago

  matched  1 candidate   96.0 MB

clean plan
  mode     dry-run
  targets  1 item   96.0 MB

targets
      size  category      name         project            age/status     action
   96.0 MB  worktree      b7f4c2       aibris             orphaned 12d   remove-path
    ~/.codex/worktrees/b7f4c2

[DRY-RUN] No files were removed.

Confirm before deleting anything:

$ aibris clean --category node_modules --age 7d
clean
  roots  ~

  scanned  7 sources   4 items   3.2 GB

  matched  1 candidate   1.8 GB

clean plan
  mode     delete
  targets  1 item   1.8 GB

targets
      size  category      name         project            age/status     action
    1.8 GB  node_modules  dashboard    -                  24d           remove-path
    ~/path/to/dashboard/node_modules

Proceed? [y/N]:

scan writes a short-lived snapshot under the user cache directory. A following clean reuses it for 5 minutes when the scan roots and cache schema match. If the cache is stale, missing, or for different roots, clean falls back to a live scan with progress output.

So the common loop is fast and visible:

aibris scan
aibris clean --dry-run
aibris clean

When stdout is an interactive terminal, scans use a single-line spinner while providers run. In non-interactive logs, progress falls back to plain scanning / found lines.

Safety

• Default --age 7d avoids very recent work
• Human age units support h, d, w, mo, and y
• --dry-run previews before deleting
• --interactive confirms each item
• Target plan before final confirmation shows category, size, project, age/status, path, and cleanup command when applicable
• Recent scan reuse skips a repeated scan when clean can use a fresh compatible snapshot, while still re-checking target paths
• --risky must be explicitly set to delete AI logs
• Active worktrees are excluded by default; use --include-active-worktrees only when you intentionally want age-based cleanup for valid worktrees
• Home-scoped roots: default scanning starts at $HOME; --root can narrow scope to one or more existing directories under $HOME
• Convention-based worktree discovery: worktrees are discovered by finding worktrees, worktree, worktree-*, and worktrees-* directories under scan roots, then validating direct or nested .git files. To keep full-home scans practical, aibris searches hidden owners and project-local containers within a bounded shallow depth instead of recursively walking every child.
• Pruned scan directories for project-style discovery include .Trash, Library, Applications, Pictures, Movies, Music, .git, vendor, and nested node_modules; Desktop and Downloads are scanned
• Official cache cleanup commands are preferred for supported caches (go clean -cache, npm cache clean --force, uv cache prune). If the owning command is missing, aibris falls back to the existing safe path removal behavior; if the command runs and fails, aibris does not fall back silently.
• Confirmation prompt on every clean (use --force to skip)
• Safety validation rejects deletions outside $HOME, symlink escapes, and unvalidated arbitrary paths. Generic worktrees are only cleanable after scan metadata proves they are active or orphaned Git worktrees.
• Negative age rejection prevents accidental full-scope deletion

How It Works

aibris scan  → discovers worktree conventions, caches, node_modules, logs under scan roots
aibris clean → filters by age/category/tool → deletes safely

AI tools leave debris in predictable conventions. aibris scans $HOME by default, prunes high-noise system and media directories while discovering development debris, validates Git worktree metadata before reporting worktrees, measures disk usage, and cleans only after filters and safety checks. Judgment about what should be removed stays with a human or an AI assistant using scan --json.

New tools can be added by implementing the DebrisProvider interface.

Agent Workflow

aibris scan --json
aibris clean --category worktree --age 7d --dry-run
aibris clean --category worktree --age 7d

The intended agent flow is: scan, summarize by project/category/age, ask the user what to remove, run a dry-run, ask again, then execute.

Contributing

See CONTRIBUTING.md and AGENTS.md for architecture and development guidelines.

License

MIT — see LICENSE.