Catch the bugs before they're written.
Firetrail analyzes every pull request the moment it opens, scores its Future Debug Cost, and puts a team of six senior-engineer reviewers on the PR — risk, evidence, and coaching, so your team fixes the risky change before it ever ships.
Your review team — six senior reviewers on day one. Meet them →
Installs as a GitHub App in minutes · Advisory by default — never blocks your merges
Code review catches typos. It misses the changes most likely to break.
A reviewer skims a 40-file PR and approves it. Six weeks later it's the origin of a production incident. The risk was there at review time — bundled refactors, untested logic, cross-stack blast radius — but nothing surfaced it. Firetrail does.
Six senior reviewers on every pull request
Beyond the score, Firetrail puts a team of named senior-engineer AI reviewers on each PR. Each one judges the change from their own specialty — and tells you, in plain language, whether they'd ship it.
“The retry path isn't idempotent — a failed charge could double-bill.”
Correctness, data access, reliability & operational soundness
“Authorization is scoped to the org on every query — no concerns here.”
Secrets, authz, tenant isolation & abuse defenses
“Migration is backward-compatible, but this lookup needs an index.”
Schema, constraints, indexing & migrations
“Clean component, but the loading and error states are missing.”
Component design, UX states & frontend performance
“Nothing user-facing in this change for me to weigh in on.”
Keyboard access, focus, semantics & contrast
“Single responsibility holds and the new abstraction earns its keep.”
Design principles & cognitive / UX laws
The team is advisory — like the score, it never blocks your merge. Each reviewer keeps a deep private checklist and only speaks up about what your PR actually triggers, citing the files and the reasoning behind every concern.
From pull request to risk insight, automatically
Firetrail meets your developers where they already work — inside the PR.
Connect your repo
Install the Firetrail GitHub App and pick your repositories. No CI changes, no config files.
Every PR is analyzed automatically
On open and on every push, Firetrail fetches the diff and runs its classifiers to compute a Future Debug Cost score.
Risk + coaching land on the PR
A check and a single, tidy comment show the score, what drove it, the evidence, and a coaching suggestion — never blame.
A risk lens on every change
Deterministic facts plus AI classification — tuned to detect real production risk, not superficial churn.
Future Debug Cost score
One explainable 0–100 score per PR with a transparent breakdown — Low, Moderate, High, or Critical — so risk is comparable across your whole team.
Expert review team
Six named senior-engineer reviewers — backend, frontend, security, database, accessibility, and software heuristics — each give a holistic verdict and satisfaction score on every PR, right alongside the score.
Origin tracing
When a bugfix lands, Firetrail blames the changed lines back to the PRs that introduced them — turning incidents into evidence about what's risky.
Built-in classifiers
Refactor/feature mix, untested risky behavior, cross-stack blast radius, global config changes, dependency updates, and more — each with evidence and false-positive notes.
Custom classifiers
Add your own risk checks with a plain-English prompt — cognitive complexity, secret scanning, anything specific to your codebase. No code required.
Business impact dashboard
Translate risk into ROI: debugging cost avoided, before/after trend, and proof — high-risk PRs are X× more likely to become bugs in your own history.
Engineering health & team views
Track change quality over time, spot the most common risk patterns, and coach with data — never blame.
Coaching, not a gate
Firetrail is advisory by design. It surfaces risk and how to address it, while your team stays in control of the merge.
- ✓A native check shows the Future Debug Cost on the commit — pass/neutral, never a surprise block.
- ✓A single comment is updated in place on every push (no thread spam) with the score breakdown and top findings.
- ✓Your six-person review team weighs in right in the comment — each member's verdict and satisfaction at a glance.
- ✓Every finding cites the file and reason, with false-positive considerations and a coaching follow-up.
- ✓Re-run on demand, or let it re-analyze automatically as the PR evolves.
🟠 Future Debug Cost: 62 (High)
High risk — Firetrail Risk Score 62/100.
🔍 What to watch
Test relevance — the new retry branch in payments.rb has no covering test.
↳ Add a test for the failed-charge path before merging.
👥 Team review
Coaching signal, not a gate · View the full analysis in Firetrail →
Prove the value — from your own bug history
Firetrail doesn't just flag risk; it proves the score predicts real bugs and estimates the debugging cost you avoid. The slide that justifies the renewal writes itself.
See your impactPay for the developers who ship
Billed per active developer — only the people who actually opened a PR that month. Start free and upgrade when you're ready; ~2 months off when billed annually.
Free
Solo projects & trying it out.
- ✓1 repository
- ✓4 core risk classifiers
- ✓PR checks & comments
- ✓50 PRs / month
Starter
For small teams getting started.
- ✓2 repositories
- ✓50 PRs / seat / mo, then $1 / PR
- ✓4 core risk classifiers + analytics
- ✓Team review — 1 reviewer of your choice
- ✓Origin tracing, coverage & more on Pro
Pro
For teams shipping every day.
- ✓Unlimited repositories
- ✓50 PRs / seat / mo, then $2 / PR
- ✓All 8 classifiers + 10 custom
- ✓Full review team — all 6 reviewers
- ✓AI patch coverage · Historical Chat · Team Comparison
Business
Scaling orgs at full throttle.
- ✓Everything in Pro
- ✓50 PRs / seat / mo, then $1.25 / PR
- ✓Origin tracing (bugfix forensics)
- ✓Unlimited custom classifiers
- ✓Priority support
Every seat includes 50 analyzed PRs per month; beyond that it's a small per-PR rate, so a busy month is a predictable add-on rather than a surprise bill. Billed per active developer (only those who opened a PR), with ~2 months free on annual plans.
Start surfacing risk before merge
Connect a repository and watch Firetrail score your next pull request in seconds.