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GitHub Advanced Security or Semgrep: agentic AppSec compared
Short answer
By The Pipeline Desk · Best Agentic AppSec · Published 2026-10-08
Desk research from public vendor pages, changelogs and standards documents. Vendor facts read in September 2026, updated 2026-10-11. Editorial assessment; we did not run the products.
How do they compare at a glance?
GitHub Advanced Security
Fix path with stated validation, for repositories on GitHub
Rank 6 of 10
Semgrep
Agent hooks with published per-contributor pricing
Rank 9 of 10
Which scores higher on each criterion?
| Criterion | Weight | GitHub Advanced Security | Semgrep | Higher |
|---|---|---|---|---|
| Agent and MCP discovery | 10% | 2 / 10 No central inventory of AI coding tools is described on the pages reviewed. Source: GitHub Docs: about GitHub Advanced Security · Read 27 Sep 2026 | 3 / 10 No org-wide inventory of agents or MCP servers is described on the pages reviewed. Source: Semgrep Guardian · Read 27 Sep 2026 | Semgrep |
| Agent policy enforcement and audit | 10% | 4 / 10 Built-in security checks apply to GitHub's own Copilot coding agent; no policy for third-party agents is described. Source: GitHub Changelog: Copilot coding agent validates security and quality (28 Oct 2025) · Read 27 Sep 2026 | 6 / 10 Guardian hooks on every file write block malicious dependencies, hardcoded credentials and vulnerable patterns inside individual agents. Source: Semgrep Guardian · Read 27 Sep 2026 | Semgrep |
| Secret handling for agents | 5% | 7 / 10 Secret scanning with push protection, and a ruleset rule that blocks merges while secret alerts are open; secret handling inside agent sessions is not described. Source: GitHub Changelog: block pull requests with exposed secrets (9 Sep 2026) · Read 27 Sep 2026 | 7 / 10 Guardian stops hardcoded secrets at generation time, and Semgrep sells a Secrets product. Source: Semgrep Guardian · Read 27 Sep 2026 | Tie |
| Agentic remediation | 20% | 9 / 10 Agentic autofix is generally available for Code Quality findings (9 Sep 2026): up to 25 findings fixed on a branch, validated and opened as a pull request, with fix patterns reused through Copilot Memory; Copilot Autofix is part of Code Security. Source: GitHub Changelog: agentic autofix for Code Quality findings (9 Sep 2026) · Read 27 Sep 2026 | 4 / 10 Remediation guidance in PRs and IDEs; no agent that writes and lands fixes is described. Source: Semgrep homepage · Read 27 Sep 2026 | GHAS |
| Agentic triage and prioritization | 15% | 6 / 10 Security overview and campaigns; no reachability or business-context scoring on the pages reviewed. Source: GitHub Docs: about GitHub Advanced Security · Read 27 Sep 2026 | 8 / 10 Semgrep Assistant auto-triages findings and uses code context to cut false positives. Source: Semgrep homepage · Read 27 Sep 2026 | Semgrep |
| SDLC policy and supply chain posture | 10% | 8 / 10 Secret scanning with push protection, dependency review, and a ruleset rule in public preview that blocks merges while secret alerts are open. Source: GitHub Changelog: block pull requests with exposed secrets (9 Sep 2026) · Read 27 Sep 2026 | 7 / 10 Supply Chain and Secrets products, with malware detection and policy actions such as Jira tickets added on 24 Sep 2026; CI/CD posture is not described. Source: Semgrep blog: malware detection and response automation · Read 27 Sep 2026 | GHAS |
| Scanner coverage and orchestration | 10% | 8 / 10 CodeQL code scanning and dependency review, plus third-party extensibility: findings from other scanning tools can be centralized through SARIF upload; de-duplication across tools is not described. Source: GitHub Security plans · Read 11 Oct 2026 | 7 / 10 Code, Supply Chain and Secrets scanning with AI-assisted analysis; ingesting other scanners' findings is not described. Source: Semgrep homepage · Read 27 Sep 2026 | GHAS |
| Named coding agent reach | 10% | 2 / 10 Names 1 of the six agents we track: GitHub Copilot. Source: GitHub Changelog: Copilot coding agent validates security and quality (28 Oct 2025) · Read 27 Sep 2026 | 5 / 10 Names 3 of the six agents we track: Claude Code, Cursor and Windsurf. Source: Semgrep Guardian · Read 27 Sep 2026 | Semgrep |
| Pricing and trial transparency | 10% | 9 / 10 Secret Protection at $19 and Code Security at $30 per active committer per month are published. Source: GitHub Advanced Security · Read 27 Sep 2026 | 8 / 10 Free up to 10 contributors and 10 repositories with 60 AI credits; Teams at $30 a month per contributor for Code or Supply Chain and $15 for Secrets, with 20 AI credits per developer a month; Guardian pricing is not stated. Source: Semgrep pricing · Read 11 Oct 2026 | GHAS |
How do they differ along the pipeline?
| Control point | GitHub Advanced Security | Semgrep |
|---|---|---|
| Agent | Partial The Copilot coding agent runs CodeQL, Advisory Database and secret scanning checks on its own changes; no controls for third-party agents on the pages reviewed. Source: GitHub Changelog: Copilot coding agent validates security and quality (28 Oct 2025) · Read 27 Sep 2026 | Partial Guardian runs as an MCP server, hooks on every file write and skills in Claude Code, Cursor and Windsurf; no org-wide agent inventory on the pages reviewed. Source: Semgrep Guardian · Read 27 Sep 2026 |
| IDE | Not documented IDE-side checks are not described on the pages reviewed. Source: GitHub Docs: about GitHub Advanced Security · Read 27 Sep 2026 | Documented VS Code and JetBrains support, with remediation guidance in IDEs. Source: Semgrep homepage · Read 27 Sep 2026 |
| Pull request | Documented Code scanning and dependency review on pull requests; AI Scan for pull requests in public preview. Source: GitHub Changelog: AI Scan no longer requires CodeQL default setup (16 Sep 2026) · Read 27 Sep 2026 | Documented Remediation guidance in pull requests. Source: Semgrep homepage · Read 27 Sep 2026 |
| Pipeline | Documented Secret scanning with push protection, and a ruleset rule in public preview that blocks merges while secret scanning alerts are open. Source: GitHub Changelog: block pull requests with exposed secrets (9 Sep 2026) · Read 27 Sep 2026 | Documented Supply Chain and Secrets products; malicious package detection and policy actions such as Jira tickets and Slack alerts added 24 September 2026. Source: Semgrep blog: malware detection and response automation · Read 27 Sep 2026 |
| Triage | Partial Security overview and campaigns; no reachability or business-context scoring on the pages reviewed. Source: GitHub Docs: about GitHub Advanced Security · Read 27 Sep 2026 | Documented Semgrep Assistant auto-triages findings. Source: Semgrep homepage · Read 27 Sep 2026 |
| Fix | Documented Agentic autofix is generally available for Code Quality findings: Copilot fixes on a branch, validates its changes and opens a pull request. Source: GitHub Changelog: agentic autofix for Code Quality findings (9 Sep 2026) · Read 27 Sep 2026 | Partial Remediation guidance in PRs and IDEs; no agent that writes and lands fixes is described. Source: Semgrep homepage · Read 27 Sep 2026 |
What do they cost?
GitHub Advanced Security
GitHub Secret Protection $19 per active committer per month; GitHub Code Security $30 per active committer per month. Available to GitHub Team and Enterprise Cloud.
Source: GitHub Security plans · Read 11 Oct 2026
Free start: No free tier for private repositories on the pages reviewed; the Copilot coding agent's built-in security checks need no GHAS license.
Semgrep
Free for up to 10 contributors and 10 repositories (60 AI credits). Teams: $30 a month per contributor for Code or Supply Chain, $15 for Secrets, with 20 AI credits per developer a month. Enterprise custom (50 AI credits per developer a month). Guardian pricing is not stated.
Source: Semgrep pricing · Read 11 Oct 2026
Free start: Free for up to 10 contributors.
Which coding agents does each name?
| Agent | GitHub Advanced Security | Semgrep |
|---|---|---|
| Claude Code | Not named | Named |
| Cursor | Not named | Named |
| GitHub Copilot | Named | Not named |
| Windsurf | Not named | Named |
| OpenAI Codex | Not named | Not named |
| Kiro | Not named | Not named |
| Total | 1 of 6 | 3 of 6 |
Which should you choose?
Choose GitHub Advanced Security if you need agentic remediation and pricing and trial transparency. GitHub Advanced Security: Fix path with stated validation, for repositories on GitHub.
Choose Semgrep if you need agentic triage and prioritization and pricing and trial transparency. Semgrep: Agent hooks with published per-contributor pricing.
Frequently asked questions
Which is better for agentic AppSec, GitHub Advanced Security or Semgrep?
On our published weights GitHub Advanced Security scores higher overall, 6.35 to 5.95 out of 10. See the criterion table above for where each scores higher.
Which governs coding agents more fully, GitHub Advanced Security or Semgrep?
Semgrep scores higher on the agent governance group (5.0 to 3.8). GitHub Advanced Security: The Copilot coding agent runs CodeQL, Advisory Database and secret scanning checks on its own changes; no controls for third-party agents on the pages reviewed. Semgrep: Guardian runs as an MCP server, hooks on every file write and skills in Claude Code, Cursor and Windsurf; no org-wide agent inventory on the pages reviewed.
Do GitHub Advanced Security and Semgrep publish prices?
GitHub Advanced Security: GitHub Secret Protection $19 per active committer per month; GitHub Code Security $30 per active committer per month. Available to GitHub Team and Enterprise Cloud. Semgrep: Free for up to 10 contributors and 10 repositories (60 AI credits). Teams: $30 a month per contributor for Code or Supply Chain, $15 for Secrets, with 20 AI credits per developer a month. Enterprise custom (50 AI credits per developer a month). Guardian pricing is not stated.