[security-observability] Daily Security Observability Report — 2026-08-10

[github-actions[bot]]

Executive Summary

Over the last 7 days, 100 firewall-enabled workflow runs were identified for github/gh-aw, of which 72 had usable network traffic data at audit time. Firewall telemetry shows a healthy overall pattern: 4,364 allowed requests vs. 150 blocked requests (a ~3.3% block rate), concentrated almost entirely on two domains. No DIFC (Data Integrity and Flow Control) integrity-filtered events were recorded in the same window, indicating no MCP tool-call filtering incidents to review this period.

The dominant blocking signal is proxy.golang.org:443, blocked 126 times across three workflows (CI Optimization Coach, CLI Consistency Checker, Impeccable Skills Reviewer) — almost certainly Go module proxy fetches hitting an egress firewall rule rather than malicious activity. A smaller signal, api.individual.githubcopilot.com:443 (24 blocks, PR Code Quality Reviewer), looks like a Copilot API endpoint variant not on the current allowlist. No cross-cutting themes link the firewall data to DIFC findings since DIFC had zero events.

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🔥 Firewall Analysis

Key Firewall Metrics

Metric	Value
Workflows analyzed (firewall-enabled)	100 (72 with firewall data)
Total network requests monitored	4,514
✅ Allowed requests	4,364
🚫 Blocked requests	150
Block rate	3.32%
Total unique blocked domains	2

📈 Firewall Request Trends

All 100 collected runs fall on a single calendar day (2026-08-10), so the trend chart shows one data point rather than a multi-day series; allowed traffic (4,364) heavily outweighs blocked traffic (150). No historical daily breakdown was available to compare against prior days in cache-memory.

Top Blocked Domains

proxy.golang.org:443 accounts for 84% of all blocks (126/150), driven by Go tooling workflows fetching modules — this is very likely a legitimate dependency-resolution need rather than a security threat. api.individual.githubcopilot.com:443 (24 blocks) suggests a Copilot API host variant that isn't yet allowlisted for PR Code Quality Reviewer.

Most Frequently Blocked Domains

Domain	Times Blocked	Workflows	Category
proxy.golang.org:443	126	CI Optimization Coach, CLI Consistency Checker, Impeccable Skills Reviewer	Package registry (Go modules)
api.individual.githubcopilot.com:443	24	PR Code Quality Reviewer	GitHub Copilot API

[When policy_analysis is available:]

Policy Rule Attribution

📋 Policy: 11 rules, SSL Bump disabled, DLP disabled

No individual rule-hit counts were returned by the audit tool for these runs (rule_hits was empty in all sampled policy_analysis payloads), so a per-rule attribution table cannot be populated this cycle. The policy configuration itself (11 rules, SSL Bump disabled, DLP disabled) was consistent across all analyzed runs.

View Detailed Request Patterns by Workflow

Workflow	Allowed	Blocked
Test Quality Sentinel	1,054	0
Matt Pocock Skills Reviewer	700	0
Impeccable Skills Reviewer	414	1
CI Optimization Coach	152	122
PR Sous Chef	266	0
Ponytail Reviewer	266	0
PureLock	238	0
Design Decision Gate 🏗️	231	0
CLI Consistency Checker	166	3
AI Moderator	140	0
UK AI Operational Resilience	110	0
Daily AIC Consumption Report (Sentry + Grafana OTel)	90	0
Issue Monster	84	0
Dead Code Removal Agent	74	0
Agentic Workflow AIC Usage Optimizer	74	0

CI Optimization Coach stands out with a notably higher blocked/allowed ratio (122 blocked vs. 152 allowed), almost entirely attributable to proxy.golang.org traffic.

View Complete Blocked Domains List

• api.individual.githubcopilot.com:443
• proxy.golang.org:443

🔒 Firewall Security Recommendations

1. Allowlist proxy.golang.org:443 for CI Optimization Coach, CLI Consistency Checker, and Impeccable Skills Reviewer if Go module resolution is an expected part of their workflow logic — this accounts for 84% of all blocks and appears to be routine tooling traffic, not a threat.
2. Investigate api.individual.githubcopilot.com:443 used by PR Code Quality Reviewer — confirm whether this is a legitimate Copilot API endpoint variant that should be added to the network allowlist, or whether the workflow is misconfigured to call an unexpected host.
3. Improve audit tool policy-rule attribution — rule_hits were empty across all sampled runs despite an 11-rule policy being active; without per-rule hit data, root-causing individual denies requires manual domain-name inspection rather than rule IDs. Consider filing a missing_data/tooling issue if this persists.
4. No domains in the blocked list currently look suspicious or indicative of exfiltration/malicious activity — both are well-known, legitimate infrastructure endpoints.

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🔒 DIFC Integrity Analysis

No DIFC integrity-filtered events were found in the last 7 days. The pre-downloaded snapshot at /tmp/gh-aw/agent/integrity/filtered-logs.json returned an empty runs array, and the cache-memory snapshot (updated_at: 2026-08-10T16:16:37Z) confirms zero events for the analysis window. No tool-call filtering activity occurred, so there are no charts, per-workflow/server/user breakdowns, or tuning recommendations to report this cycle.

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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: https://github.com/github/gh-aw/actions/runs/31407426410

Generated by 🔒 Daily Security Observability Report · auto · 53 AIC · ⌖ 4.09 AIC · ⊞ 14.8K · ◷

• expires on Aug 13, 2026, 8:34 AM UTC-08:00