npx skills add ...
npx skills add usestrix/strix --skill application-security-testing
Application security testing (AppSec) across a whole product with Strix — decide which asset needs which test (source code, running web app, API, CI pipeline), run it, and turn the results into a ranked remediation plan. Autonomous agents exploit and prove each issue instead of emitting static-analysis alerts, so the plan is ordered by what is actually reachable. Use when the user asks for an application security review or audit, an appsec assessment, vulnerability scanning across their stack, a security review before a launch or a customer security questionnaire, or does not yet know which kind of security test they need.
npx skills add usestrix/strix --skill application-security-testing
Entry point for "make my application secure" requests, where the target is not yet a single URL or repo. The job here is to pick the right test per asset, run it, and produce one ranked plan — not to run everything at maximum depth.
Install, LLM setup, all CLI flags, and the managed-cloud path live in the penetration-testing-with-strix skill. Read it first if strix --version fails. For a run with no Docker and no LLM key, the same binary drives the managed platform: strix cloud login, then strix cloud scans start ... (details in managed-pentesting-with-strix).
Only test assets the user owns or is authorized to test. Confirm authorization before the first run, and prefer staging over production, because the agents send real exploit payloads and can change data.
Ask (or read from the repo) and write the answers down before scanning:
If there is no staging environment and production is off limits, say so early. A code-only review is still valuable, but it cannot prove exploitability against a live app.
| Asset | Skill to use |
|---|---|
| Repository or working tree | find-security-vulnerabilities-in-code |
| Live web app or staging site | web-app-penetration-testing |
| REST/GraphQL/gRPC API | api-security-testing |
| Assessment mapped to OWASP categories | owasp-top-10-testing |
| Every pull request, continuously | ci-security-scanning-with-strix |
| No Docker, no LLM key, or a report an auditor will accept | managed-pentesting-with-strix |
Those skills carry the flags, credential handling, and result-reading details. Do not duplicate their instructions here.
Sequence for a first assessment:
Run one asset at a time and read each report before starting the next. Findings from the code review make the live run sharper.
Findings arrive per run in strix_runs/<run>/. Merge them into a single list and rank by proven impact, not by scanner severity:
Deduplicate: the same root cause often surfaces in both the code review and the live pentest.
State plainly what was not tested — assets with no staging environment, categories a black-box run cannot reach (logging and alerting, supply-chain integrity, insecure design), and any run that hit its budget or turn cap before finishing. Check run.json status and cost against --max-budget for each run. An empty result set from a truncated scan is not a clean bill of health.
Then remediate with fix-security-vulnerabilities-with-strix, which re-runs Strix against each fix to prove the exploit no longer works.