aig

git blame tells you WHO. aig why tells you WHY.

Trace any line back to the intent that created it, the semantic changes around it, and the conversation that shaped it.

Semantic Diffs, Not Line Noise

See 'function authenticate() added' instead of 300 lines of red and green. Supports TypeScript, Python, Rust, Go, Java, C#, C++, and Ruby.

AI Conversations Auto-Captured

AI conversations are auto-captured into your version history. Supports Claude Code out of the box, with a generic import format for any AI tool.

Works With Your Existing Repo

Run 'aig import' in any git repo to build an intent graph from your commit history. Non-destructive — your git history is untouched.

Fully Git Compatible

aig layers on top of git. Push, pull, branch, merge — everything works. Your repo stays a valid git repo. Teammates who don't use aig are unaffected.

Share Context Across Clones

aig push/pull syncs intent history via git notes. Clone a repo, run 'aig pull', and the full reasoning behind every change is there.

Your git log is a wall of noise

47 commits. Half of them say "wip". aig groups them into intents — the actual units of work.

git log

e4b21a7 Add mutex
9c0f3d2 wip
7a1bc85 fix test
f82ca91 Add google oauth
3d6e0f4 rotate tokens
a90c1b3 fix lint
c44df87 WIP oauth
1e8b6a0 refactor auth middleware
bb712f5 Add postgres migration
6d0ea93 fix connection pool
f1c4e72 Update user model
8823a1d remove sqlite refs
02efc9a fix tests
d4917cb cleanup
...

47 commits. Which ones matter?

aig log

[a1f8c932] Fix payment race condition (active)
  3 checkpoint(s)
    (e4b21a7) Add mutex lock on charge_customer
    (9c0f3d2) Add idempotency key to Stripe call
    (7a1bc85) Add regression test for double-charge

[d47e0b15] Add OAuth2 login flow
  5 checkpoint(s)
    (f82ca91) Add Google OAuth provider
    (3d6e0f4) Add session token rotation
    ...

[8b3f21c7] Migrate user store to PostgreSQL
  8 checkpoint(s)
    ...

3 intents. The story of what actually happened.

git blame answers the wrong question

You don't need to know who wrote line 42. You need to know why it exists.

git blame payment.rs

9c0f3d2 (Sarah Chen 2026-01-15) let key = IdempotencyKey::new(user_id, cart_id);

Who wrote it and when.
But why? The commit message says "wip".

aig why payment.rs:42

Intent:     [a1f8c932] Fix payment race condition
Checkpoint: Add idempotency key to Stripe call
Commit:     9c0f3d2
Semantic:   + added IdempotencyKey::new (payment.rs)
AI context: Claude suggested idempotency keys
            after analyzing the Stripe webhook logs
            showing duplicate charge events.

The intent, the reasoning, the full story.

Stop writing commit messages

aig reads your code changes and describes them for you. Just type aig checkpoint.

aig checkpoint

$ aig checkpoint

  auto-message: added rate_limit middleware, modified api router, added RateLimiter
  semantic:
    + added rate_limit (middleware.rs)
    + added RateLimiter (middleware.rs)
    ~ modified api_router (main.rs)
    + added rate_limit_test (tests/api.rs)
Checkpoint created
  intent:     Add API rate limiting
  git commit: c83f1a09

aigVersion Control for the AI Age