Reliability audits
for AI coding agents.
Stress-test your AI coding agent before you trust it in production.
Give us your AI coding agent. We run it through repeated real software-engineering tasks in isolated environments, independently verify the results, and show you where it succeeds, fails, times out, and violates boundaries.
THE RELIABILITY PROBLEM //
Single-run success
≠ reliability.
Most AI agent benchmarks evaluate whether a model can solve a problem once. If the agent completes the task on a single rollout, it is marked as capable.
In production, however, autonomous software engineering agents execute across dozens of interdependent steps where non-deterministic tool choices, subtle syntax variations, and environmental timing differences compound into unpredictable failures.
Single-run evaluations hide trajectory divergence, infinite loop traps, and unexpected regressions. True reliability requires multi-rollout isolation and independent verification against objective out-of-band invariants.
Sanre puts an AI agent through controlled, repeated executions and independently verifies what happened.
Evaluating an agent requires testing the full operating system: model + harness + tool permissions + environment state + execution trajectories.
Model context, prompt instructions, reasoning traces, and tool dispatch requests.
Isolated disposable container with clean initial commit and scoped tool proxies.
5× independent rollouts under identical starting states to expose stochastic variance.
Out-of-band test suites, AST diff checks, and integrity scans unreachable by the agent.
Complete failure mode taxonomy, execution trajectories, and structured audit telemetry.
EMPIRICAL EVIDENCE //
Observed reliability across frontier models.
Across four 25-rollout experiments, Sanre evaluated autonomous coding agents on the same 5-task benchmark suite, producing 100 total rollouts.
Highest observed pass rate across 5× repeated rollouts (EXP 007).
Stochastic variance surfaced on async race condition tasks (EXP 004).
11 timeouts observed across 25 evaluations (EXP 006).
0 timeouts · 9 test tampering violations · 75.0% valid capability (EXP 005).
EVALUATION INTAKE //
Put your agent
under test.
We run controlled, multi-run reliability audits across capability, integrity, and execution trajectory before production deployment.
Turnaround: 3–5 business days · Complete telemetry, traces & failure catalog delivered.