For AppSec engineers · Reachability layer on top of your SAST

Kill 70% of your
SAST noise.
Without replacing Snyk.

Deterministic reachability proofs that sit on top of your existing AppSec stack — Snyk, Checkmarx, Veracode, GitHub Advanced Security — and tell you which CVEs actually matter. Sub-millisecond P99. $0 per query. Runs locally. Auditor-friendly. The 90% you can ignore. The 10% you actually need to fix.

01The pain

47,000 alerts. 3 engineers. 6 weeks.

AppSec teams in 2026 spend 60-90% of their triage time on false positives. The average enterprise pays $200K-$2M/year for a SAST/SCA contract and another $400K+/year on engineers triaging its noise.

Log4j taught us the lesson: companies patched dependencies that weren't even reachable in their codebase, burning weeks and millions. CVSS scores are unreliable for prioritization — a 9.8 you can't reach beats a 6.5 you can. Yet most tools dump everything into a queue and walk away.

"We have 50,000 CVEs in our dependency tree. 99% are unreachable in our code path. We just stopped reading the report."
— AppSec lead, FinTech (anonymized)
02How AppSec teams work today

Five steps. Two hundred hours. One spreadsheet.

  1. Run Snyk weekly. Export the SARIF JSON. 47,000 findings.
  2. Pivot in Excel. Filter by severity. 4,000 highs.
  3. Manual reachability hunt. For each high, grep + open 5-10 files to confirm whether external input actually reaches the vulnerable function.
  4. Spreadsheet column "Confirmed exploitable". Per finding: 20-40 minutes. Per scan: ~200 hours.
  5. Result: 92% of the highs turn out unreachable. The team patched 4× more than they had to. The auditor isn't satisfied with "we eyeballed it" anyway.

Every weekly scan, again. Quarterly compliance audit, multiplied. The math: 200h/month × $200/h engineer time = $30K/month of human triage on top of the SAST license.

03How Argos changes it

Two MCP calls. Thirty minutes. Confidence 1.0.

$ argosbrain ingest .
✓ ingested 38,771 symbols, 232,756 call-graph edges  (4.2s)

$ mcp__argos__ingest_findings(report=./snyk-export.sarif)
✓ 47,389 findings stamped onto matching code chunks

$ mcp__argos__check_reachability(kind="sqli", max_depth=8)

Returns:

Reachability scan for sink kind: sqli
Sinks scanned: 47389  |  Source markers in scope: 142  |  Max depth: 8
Reachable sinks: 89  |  Structurally unreachable: 47300

REACHABLE — review these first (ordered by shortest hop count):
  1. payments/handler.rs:142   — 3 hops from POST /charge
  2. user/profile.rs:67        — 5 hops from GET /me/edit
  3. admin/export.py:201       — 4 hops from POST /admin/csv-export
  ...

UNREACHABLE — structural evidence of non-reachability:
  47,300 sinks scanned. No call-graph path from any source within max_depth=8.
  These findings can be filed as "not exploitable in this build" with
  auditor-friendly proof attached (per-finding JSON below).

Triage 89 findings instead of 47,389. Done in 30 minutes. Every "unreachable" verdict carries a structural proof your auditor will accept.

04Side-by-side

The math is hard to ignore.

Metric Today (Snyk + spreadsheet) With ArgosBrain on top
Findings to review47,38989 (533× reduction)
Triage time~200 hours / month~30 minutes / month
Engineer cost$30K / month$0 per query
Confidence"We eyeballed it"1.0 (proof attached)
P99 latencyhuman-bound0.404 ms on 38k-symbol Kubernetes corpus
Auditor evidencespreadsheetdeterministic JSON, reproducible

Real numbers measured against the Kubernetes 1.32.0 corpus (17,171 files, 38,771 symbols, 232,756 edges). See the Kubernetes audit case study for the full reproducible run.

05What you get

Auditor-grade evidence on a CI-friendly clock.

  • Reachability proofs at confidence 1.0 — for every flagged CVE, a deterministic yes/no on whether it's reachable from external input.
  • Sub-millisecond P99 latency — runs as a layer on every CI build with no slowdown.
  • $0 per query — no LLM in the retrieval path, predictable OPEX.
  • Local-first deployment — no source code leaves your network; air-gap friendly.
  • Drop-in MCP integration — works with any agent (Claude Code, Cursor, Cline) and any SAST tool that exports findings (SARIF 2.1.0 supported out of the box).
  • Auditor-ready evidence — deterministic logs that satisfy SOC 2, HIPAA, PCI-DSS, FedRAMP reachability requirements (see /compliance).
  • Pairs with /argos-oss-backdoor (v0.12.5) — XZ-style supply-chain attacks detected before they reach your CI. See /oss-maintainers.
06FAQ

The questions every CISO asks.

Does this replace Snyk or Checkmarx?

No. ArgosBrain is a complementary reachability layer. Keep your SAST/SCA tool — we tell you which of its findings are actually exploitable. Most teams use both.

How does the reachability proof work?

We build a deterministic call-graph using SCIP, LSP, and tree-sitter parsers (28 languages). For each finding, we prove whether external input can reach the vulnerable function. Output: confidence 1.0 (path exists, here's the proof) or NO_CONFIDENT_MATCH (exhaustive proof of unreachability within the depth budget).

Will my auditor accept this as evidence?

Yes. Outputs are deterministic, reproducible, and auditor-friendly. Unlike LLM-based tools, every claim has a structural proof attached. See /compliance for the per-framework evidence pack templates (HIPAA, SOC 2, PCI-DSS, FedRAMP, SOX 404).

Can it run air-gapped / on-prem?

Yes. Local-first by default. Pro and Enterprise tiers support fully air-gapped deployment — no telemetry, no source code leaving the network. Free tier transmits no source code, no file paths, no query content either.

What languages do you support?

28 currently — Rust, Go, Python, TypeScript, JavaScript, Java, Scala, C#, Ruby, PHP, Kotlin, Swift, C++, Dart, and more. Full list at /skills. Per-language recall numbers in the LongMemCode benchmark.

How long does integration take?

Most teams are running their first audit within 30 minutes. MCP plug-in install plus repo ingest equals 10 minutes typical. argosbrain ingest . on a 250k-LOC monorepo finishes in under 90 seconds.

07Next