What languages and frameworks do you support?

bugstack provides SDKs for JavaScript (Express, Next.js), Python (Flask, FastAPI, Django), Ruby (Rails), and Go. These SDKs capture production errors and send them to our platform for autonomous repair.

Do you have access to my code?

No. bugstack only fetches the specific files from your GitHub repository that are related to the errors being fixed. We never store or access your full codebase.

Can I review fixes before they're merged?

Yes. Every fix is delivered as a GitHub pull request. You can configure whether fixes should auto-merge when CI passes or require manual review before merging.

What if the AI fix is wrong?

bugstack implements multiple safeguards: all fixes are syntax-validated and scope-checked, CI tests run against each PR, we enforce confidence thresholds, and if a fix fails it automatically attempts a second correction.

How long does it take to fix a bug?

The entire pipeline from error detection to PR creation runs in under 2 minutes, getting your fixes into production faster.

Can I use this in production?

Yes. bugstack is designed for production use. Fixes are gated by syntax validation, scope checks, your existing CI test suite, and configurable confidence thresholds before they reach main.

The null check at 2am shouldn't need you.

Runtime errors. Auto-fixed. Tested PRs.

bugstack captures runtime errors the moment they're thrown, writes the fix, runs it through your CI, and ships the PR. The whole loop, end-to-end, under 2 minutes.

Start Free See How It Works

3 files max. 30 lines max. No dependency changes. That's the point.

bugstack dashboard showing 94% auto-fix rate and recently auto-deployed bug fixes

Trusted by zero industry leaders… Yet.

null Pied Piper <TODO/> Acme Corp. undefined Dunder Mifflin 404 Industries localhost:3000 git blame you Your logo here → bugstack

If you can’t recognize any of these, we probably can’t help you.

02 · The pain

Every runtime error costs your team 30+ minutes. It shouldn't.

Here's what happens when a single production error fires today — and what it could look like instead.

Without bugstack

Error thrown in production 0:00
Alert fires in monitoring tool +30 sec
On-call engineer paged +2 min
Engineer opens laptop, reads alert +5 min
Diagnose: find stack trace, read context +10 min
Write fix, push branch, open PR +8 min
Wait for CI, get review, merge +7 min

Total 32 min

16× faster

With bugstack

Error thrown in production 0:00
SDK captures the error +5 sec
Stack trace analyzed, context pulled +10 sec
Fix generated, PR opened +30 sec
CI runs, tests pass +45 sec
Auto-merged & deployed +30 sec
No human needed —

Total <2 min

Same error. Same stack. Different architecture. The difference isn't speed — it's whether a human is in the middle of a loop that doesn't need them.

32 min → <2 min

03 · Capture

One SDK. Two lines. Errors flow in with full context.

Install the SDK in your framework and production errors flow to bugstack the moment they're thrown — async, non-blocking, fingerprinted.

Terminal

$ npm install bugstack-sdk

✓ added 1 package in 2.1s

app.ts

1import { Bugstack } from 'bugstack-sdk'

3Bugstack.init({ apiKey: process.env.BUGSTACK_API_KEY })

RUNS ON YOUR STACK

JavaScript Python Ruby Go SDK

Express Next.js Flask FastAPI Django Rails stdlib

More languages coming →

Async & non-blocking

The SDK captures errors on a background thread. Your API response times never change, and your users never wait on bugstack.

Main thread

GET /api/users 38 ms

Background

Error caught → bugstack

0 ms impact

Fingerprinted automatically

Same error type + route + stack frame = one fingerprint. Duplicates within 24 hours increment a counter instead of re-running the pipeline.

Rate-limited by default

A flood of errors won't flood bugstack. The SDK enforces sensible ceilings so a single broken deploy doesn't DoS your fix pipeline.

04 · Fix

40–60%

of your production bugs, fixed autonomously. And we're honest about the rest.

bugstack handles stack-trace-anchored runtime errors — roughly 40–60% of production bug volume in typical SaaS codebases. Logic errors, architectural problems, and business logic bugs stay with your engineers.

acme-app

▸ config/

▾ src/

▾ api/

users.tserroring file

billing.ts

▾ middleware/

rateLimit.ts

▾ utils/

validate.tsimported module

logger.ts

▾ models/

User.ts

▾ tests/

▾ api/

users.test.tstest file

billing.test.ts

3 / 247 files read · +2 / −1 lines changed · 0 new dependencies

bugstack scope 40–60%

Human scope

≤ 3 files touched Only the erroring file, its direct imports, and the test file

≤ 30 lines changed Small, reviewable diffs — never a rewrite

0 new dependencies No package additions, no version bumps, no supply-chain risk

What bugstack fixes well

TypeError, null/undefined property access
Missing or wrong local imports
Unhandled async failures & promise rejections
Small guard & input-shape fixes
Local import/export/signature mismatches
Small Next.js route-handler errors
Python NoneType & attribute errors
Ruby NoMethodError on nil
Go nil pointer, index, map & type assertion panics

Partially fixable

Logic errors that throw an exception (minimal correction possible, but domain intent may be needed)
Runtime type mismatches (parse-only validation, no TypeScript type checking)
External service call-site failures (can add a guard, can't fix the API itself)
Go concurrency panics (only when the stack trace points to a small local fix)

What bugstack doesn't fix

Silent logic errors with no thrown exception
Architectural problems requiring redesign
Dependency or package upgrades
Database schema & migration issues
Build-only failures not captured by the SDK
Third-party/framework-only stack traces
Errors with bad or missing stack traces
Full agentic repo work (clone, shell, iterate)

Coverage estimate based on aggregate bug taxonomy data from Stack Overflow Developer Surveys, DORA research, and analysis across bugstack customer deployments. Read the full methodology in our 2026 Incident Response Benchmark →

05 · Verify

Your CI is the gatekeeper. Your confidence is the lever.

Every fix runs through your existing CI pipeline before anything merges. From there, you decide: manual review via PR, or auto-merge above a confidence threshold.

CI runs

build

test

typecheck

Attempt 1 failed → re-generate → Attempt 2 ✓

Confidence scored

85%

94% passes

94% > 85% threshold

Merge decision

Auto-merge ON

Security paths → always manual

Your tests, unchanged

bugstack uses the CI pipeline you already run on every PR. No new infrastructure, no new test framework, no duplicate work.

One retry, then stop

If CI fails, bugstack gets exactly one more attempt with the failure output as context. If the retry also fails, the PR stays open for a human — no infinite loops, no wasted CI minutes.

Security paths always require a human

Fixes touching authentication, cryptography, or input sanitization can never auto-merge, regardless of confidence score. Most teams spend the first 30–60 days reviewing every fix and graduate at their own pace — the 3 AM page becomes a morning summary.

See bugstack run on your repo — live, in 20 minutes.

06 · The numbers

When the loop closes, the numbers change.

Industry benchmarks for incident response look one way when a human is in the middle of the loop — and a very different way when that loop is closed by an agent.

MTTD 0 Industry: minutes to hours

MTTA 0 Industry: 5 min to hours

MTTR <2 min Industry: 1hr elite, 24hr+ low performers

Response rate 100% Industry: 33% of alerts acted on

Mean Time to Resolution (MTTR)

Low performers

>1 week

Medium performers

<1 week

Elite performers

<1 day

bugstack

<2 min

These benchmarks apply to the class of errors defined in Section 04 — stack-trace-anchored, code-level errors that fit within ≤3 files and ≤30 lines. bugstack doesn't change MTTR for incidents outside its scope; it eliminates it for incidents inside it.

Read the full 2026 Incident Response Benchmark → 14-min read · field guide for engineering leaders · methodology, citations, and the full analysis

Want to see these numbers on your codebase?

07 · Ready when you are

Stop triaging. Start shipping.

See bugstack running on your stack in 20 minutes — or start the trial and connect GitHub yourself. Either way, your first tested PR lands today.

Start 14-day trial

14-day free trial · Setup in minutes · Full feature access · Cancel anytime

Want the full analysis? Read our 2026 Incident Response Benchmark →