git archaeology, now with answers

Ask your codebase why.

Every line has a story: the incident that caused it, the PR that changed it, the issue it broke three months later. Thellador reads your git history, pull requests and tickets — then answers in plain language, with citations.

$ thellador "why is the retry cap 3?" — answers in seconds, from your own history.

thellador — ~/acme/api
$ thellador "why is the retry cap 3?" ⟲ indexing … 14,392 commits · 2,118 PRs · 741 issues — done in 41s ⚠ RETRY_CAP = 3 (src/http/client.ts:88) ├ PR #1042 “clamp retries after INC-88” @a.petrov · Mar 14 │ outage INC-88: retry storms amplified the 502 spike 6× ├ PR #778 “add jitter to backoff” @m.silva · Jan 09 │ cap was 5 here — lowered when jitter alone didn’t settle p99 └ linked issue #991 “flaky checkout during sale” why 3: smallest cap that kept p99 flat in the INC-88 postmortem (p99 +2% at cap 3 vs +31% at cap 5). answer built from 3 commits · 2 PRs · 1 incident · 0 guesses
works with GitHub works with GitLab works with Bitbucket lives in CLI lives in pull requests lives in Slack index read-only · ephemeral
How it works

Three steps. No migration. No agents run wild.

Thellador never touches your code. It reads the record of what your team already wrote down — and connects the dots no human can hold in their head.

01

Connect the repo

Read-only token, two clicks. Thellador pulls commit messages, PR descriptions, review threads, linked issues and incident notes — never the source itself.

02

It builds the story graph

Causality, not keywords: which commit answered which outage, which revert undid which fix, which “temporary” hack has outlived three authors.

03

Ask anything

From your terminal, a PR comment, or Slack. Every answer arrives with commits, PRs and people cited — click through and verify it yourself.

What you get

Blame turned into testimony.

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Answers with citations

Not “it looks like…” — every claim links the exact commit, PR and incident it came from. If the history doesn’t know, Thellador says so.

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Onboarding in one afternoon

New hire asks “what does this module actually do, and who owns it?” — gets the human history: why it exists, what it replaced, which fires it survived.

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Incident archaeology

During an outage: “what changed in this path this week?” Thellador reconstructs the change timeline across PRs and reverts before the postmortem starts.

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Your history stays yours

Read-only access, ephemeral index, per-repo scoping. Nothing is written back, nothing is shared, nothing trains anything. Ask, answer, forget.

“The hardest bugs aren’t in the code. They’re in the six decisions that led to the code — and only one of them is still in someone’s head.”

— every senior engineer, right before they quit
Early access

Stop archaeology by hand.

Thellador is in private beta with a handful of engineering teams. Tell us about your codebase and we’ll open a seat.

built with Claude · index answers in seconds · SOC2-in-progress is a lie we won’t tell you