LOCI does not wait for a full build. It compiles incrementally — isolated object files per function or module — so signals are available from the moment code is written, not after CI finishes.
While you code
Incremental
As you type, LOCI compiles the current function or module into a small shared object (.so). No full build required — signals fire on the fragment you’re working on right now.
Like Compiler Explorer — always a binary, always a signal.
After full compile
Full binary
Once the build completes, LOCI runs a full binary pass — call graph, flame graph, response time, throughput, and power across the entire program.
Before tests run. Before CI queues.
During testing
Coverage gaps
LOCI maps which execution paths, tail cases, and edge scenarios your tests never reach. It doesn’t replace tests — it shows your agent the scenarios worth writing tests for.
Your AI coding agent has no sense of how code actually executes — until now. LOCI gives it execution awareness: real signal data to plan features, resolve bugs, and gate CI before anything ships.
Planning a new feature
agent queries execution before writing
01
Agent queries the baseline
Before writing, the agent asks LOCI: what are the current response time, throughput, and power budgets for this system?
02
Plans within real bounds
Armed with execution data, the agent designs the feature within actual constraints, not hallucinated ones.
03
Signals validate the output
After the change compiles, LOCI confirms the new binary stays within baseline. The agent knows before you review.
04
First-pass ships clean
No rework. No regression surprise in PR. KPIs were baked in from the moment the agent started planning.
Investigating a bug
agent reads signals, not logs
01
Signal surfaces the anomaly
LOCI flags the deviation, a response time spike, power surge, or call graph branch that shouldn't exist. The agent sees it immediately.
02
Agent reads the flame graph
The agent gets the exact function, loop, or allocation responsible, from the binary. No log hunting. No reproduction needed.
03
Targeted fix, not exploration
Because the execution evidence is already in context, the agent's fix is precise. It's not guessing which path to try next.
04
Signal returns to baseline
LOCI confirms the anomaly is resolved before merge. The agent ships the fix knowing it worked, not hoping it did.
CI / Automated gate
signal diff on every PR, not just test pass/fail
01
PR opens — analysis triggers
LOCI binary analysis runs automatically in CI the moment a PR is opened. No manual steps. No configuration per repo.
02
Signals diff against base branch
Instead of pass/fail, CI gets a precise signal diff: response time +12%, throughput -8%, CFI clean. The agent sees exactly what changed.
03
Regression blocks merge
If any signal exceeds the defined budget, CI annotates the PR with the specific regression, not a vague failure. The agent knows what to fix.
04
Fix once, baseline updates
Once the agent resolves the regression, signals return to baseline, CI passes, and the new baseline is recorded for the next PR.
One layer, three workflows: plan features with execution bounds before writing, resolve bugs from signal evidence, and gate every PR with a precise signal diff — not a binary pass/fail.
Execution signals
Five signals. Zero guessing.
Each signal is a prediction from a model trained on five years of real running software — not logs, not sampling, not instrumentation. Fires before the code runs.
Free
Response Time
Latency profiling from binary, before the first request is ever made.
Tail-latency regressions in AI-generated code
Worst-case execution paths introduced by new logic
Latency budget violations caught pre-deploy
Developer
Throughput
RPS, tokens/sec, and ops/sec trends across your change sets.
Throughput bottlenecks from agent-written loops
Saturation points under concurrency
Degraded hot paths from refactors
Developer
Call Graph / CFI
Control flow integrity analysis, what code review alone can’t see.
Unexpected branches reachable from attacker inputs
Unsafe execution patterns introduced silently
CFI violations before CI even runs
Team
Flame Graph
CPU hotspot breakdown from binary – no profiler, no instrumentation.
CPU-heavy hot paths in AI-generated code
Inefficient loops and redundant allocations
GPU kernel divergence on CUDA targets
Team
Power / Energy
Energy per operation – critical for embedded, mobile, and edge targets.
Power spikes introduced by new execution paths
Thermal pressure from code changes
Energy budget overruns on constrained hardware
Incremental analysis
Signals fire as you write - or as your agent codes for you.
No full build required. Like Compiler Explorer — LOCI recompiles small units incrementally as code is written, lifts each to IR, and fires signals from the binary diff. Whether it’s you or Claude Code at the keyboard, the regression is caught before the function is finished.
Like Compiler Explorer, but instead of assembly, you get execution signals from a model trained on five years of real workloads.
Execution Gates
12 gates. Binary in. Pass or Block out.
LOCI lifts two binaries to IR, builds an execution graph, and fires or clears each gate from the diff, before a single instruction runs. No execution required. No instrumentation. Just two ELF files.
Gates in action
— Three real codebases
From BLE firmware to 70B-parameter inference. Same gates. Very different scale.
Language Support
Binary-level analysis. Any target.
LOCI reads compiled output, ELF, Mach-O, PTX, Wasm, so the source language is an input, not a constraint. Write in anything that compiles, LOCI analyzes the binary.
BINARY FORMATS
ELF
Mach-O
PTX / SASS
Wasm
JVM Bytecode
CPython Bytecode
ELF
C / C++
Rust
Go
Zig
Mach-O
Swift
PTX / SASS
CUDA
Wasm
WebAssembly
JVM / CPython
Java / Kotlin
Python
Where LOCI Fits
Earlier insight. Fewer surprises.
As you build your software: Code → Build → LOCI Signal → Test → Merge