[security-observability] Daily Security Observability Report — 2026-05-17

[github-actions[bot]]

Executive Summary

Over the last 7 days (analysis window: 2026-05-10 to 2026-05-17), the firewall monitored 1,641 network requests across 42 firewall-enabled workflow runs, allowing 1,269 (77.3%) and blocking 372 (22.7%). The blocked requests are entirely unclassified — they carry no identifiable domain name (raw IP connections, no-SNI TLS, or pre-DNS intercepts), which is the expected behavior for the firewall's zero-trust posture. The top allowed domains are github.com (546 requests), api.githubcopilot.com (535), and api.anthropic.com (158), representing legitimate AI engine and GitHub API traffic.

On the DIFC integrity side, 5 workflow runs had filtered event logging enabled across the analysis window, and zero integrity-filtered events were observed. This indicates that Data Integrity and Flow Control is functioning without triggering false positives, and all tool calls in those runs passed integrity validation cleanly. No cross-cutting patterns between firewall blocks and DIFC filtering were detected this period.

---

Firewall Analysis

Key Firewall Metrics

Metric	Value
Workflows analyzed (firewall-enabled)	42
Total network requests monitored	1,641
Allowed requests	1,269
Blocked requests	372
Block rate	22.7%
Total unique blocked domains	1 (unclassified)

Firewall Request Overview

Network traffic shows a healthy distribution with 77.3% of requests allowed. The Daily Malicious Code Scan Agent generates the highest volume (562 allowed, 20 blocked across 1 run), followed by PR Sous Chef (121 allowed, 61 blocked across 5 runs). The Agent Performance Analyzer - Meta-Orchestrator shows the highest block ratio among active workflows (32 blocked vs 35 allowed), suggesting it may be accessing resources outside its declared network policy.

Top Allowed & Blocked Domains

All 372 blocked requests are classified as unclassified/unknown — connections with no resolvable domain name. This typically occurs when agents attempt raw IP connections, make TLS connections without SNI headers, or when DNS resolution happens outside the firewall's monitoring scope. The top allowed domains are exclusively legitimate services: github.com for repository and API access, api.githubcopilot.com and api.anthropic.com for AI model endpoints.

Top Allowed Domains

Domain	Allowed Requests	Category
github.com	546	GitHub API / Repository
api.githubcopilot.com	535	GitHub Copilot AI Engine
api.anthropic.com	158	Claude AI Engine
proxy.golang.org	15	Go Module Proxy
api.openai.com	8	OpenAI / Codex Engine
storage.googleapis.com	3	Google Cloud Storage
sum.golang.org	2	Go Module Checksum DB
ab.chatgpt.com	1	OpenAI A/B Testing
chatgpt.com	1	OpenAI Web

View Detailed Request Patterns by Workflow

Workflow	Allowed	Blocked	Runs	Block Rate
Daily Malicious Code Scan Agent	562	20	1	3.4%
PR Sous Chef	121	61	5	33.5%
Daily Sub-Agent Optimizer	85	0	1	0%
Q	42	31	2	42.5%
Package Specification Librarian	42	26	1	38.2%
Agent Performance Analyzer - Meta-Orchestrator	35	32	1	47.8%
Matt Pocock Skills Reviewer	29	27	2	48.3%
Smoke OTEL	29	26	2	47.3%
Test Quality Sentinel	30	19	2	38.8%
Delight	26	20	1	43.5%
Chaos PR Bundle Fuzzer	23	20	1	46.5%
Workflow Normalizer	24	19	1	44.2%
Agent Persona Explorer	25	16	1	39.0%
Daily SPDD Spec Planner	22	17	1	43.6%
Daily CLI Performance Agent	24	14	1	36.8%

Firewall Security Recommendations

1. Investigate high block-ratio workflows: Matt Pocock Skills Reviewer (~48%), Agent Performance Analyzer - Meta-Orchestrator (~48%), Smoke OTEL (~47%), and Chaos PR Bundle Fuzzer (~47%) all show near-50% block rates. Audit their network policies to determine if they need additional allowed domains or if the blocked traffic is expected.
2. Classify unknown blocked traffic: All 372 blocked requests have no domain name. Consider enabling deeper packet inspection or SNI-level logging in the firewall to better classify what services agents are attempting to reach.
3. PR Sous Chef network scope: With 61 blocked requests across 5 runs, this workflow has a consistent pattern of blocked traffic — verify whether it requires additional network allowances.
4. Monitor Q workflow: 42.5% block rate across 2 runs suggests its network configuration may be too restrictive for its workload or it is attempting unauthorized external connections.

---

DIFC Integrity Analysis

Key DIFC Metrics

Metric	Value
Total filtered events	0
Unique tools filtered	0
Unique workflows affected	0
Most common filter reason	N/A
Busiest day	N/A

DIFC Events Over Time

No DIFC integrity-filtered events were observed in the last 7 days across 5 monitored runs. This is a positive signal — the DIFC system is operating without triggering false positives on legitimate workflow tool calls.

Top Filtered Tools

No tool calls were filtered during the analysis period.

Filter Reasons and Tags

No integrity or secrecy filtering events to report.

Per-Workflow DIFC Breakdown

Workflow	Filtered Events
CLI Version Checker	0
Safe Output Health Monitor	0
Daily Team Evolution Insights	0
Issue Triage Agent	0
GitHub MCP Structural Analysis	0

DIFC Tuning Recommendations

1. Expand DIFC monitoring coverage: Only 5 of 42+ firewall-enabled workflows have DIFC filtering enabled. Consider enabling DIFC on higher-risk workflows (e.g., those with high block rates like Matt Pocock Skills Reviewer or Agent Performance Analyzer).
2. Baseline established: Zero filtered events this period provides a clean baseline. Maintain this state and alert on any future spikes.
3. Cross-signal correlation: Since all 5 DIFC-monitored runs are distinct from the highest-volume firewall runs, consider enabling DIFC on PR Sous Chef and Daily Malicious Code Scan Agent which generate the most network traffic.

---

Generated by the Daily Security Observability workflow (consolidated from Daily Firewall Reporter + Daily DIFC Analyzer)
Analysis window: Last 7 days | Repository: github/gh-aw
Run: §25995932443

Generated by 🔒 Daily Security Observability Report · ● 13.9M · ◷

• expires on May 20, 2026, 4:31 PM UTC

[github-actions[bot]]

This discussion was automatically closed because it expired on 2026-05-20T16:31:19.212Z.

Closed by Workflow