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

[github-actions[bot]]

Executive Summary

Over the last 7 days, 98 of 100 firewall-enabled workflow runs were successfully audited across the github/gh-aw repository, monitoring 4,598 total network requests with a very low overall block rate of 0.6% (27 blocked / 4,571 allowed). Two workflows accounted for all blocked traffic: PureLock (7 blocks to an unresolved domain) and PR Code Quality Reviewer (20 blocks to api.individual.githubcopilot.com:443), suggesting a narrow, workflow-specific network permission gap rather than a systemic firewall issue. Egress policies observed 9–12 rules per run with SSL Bump and DLP disabled throughout the window.

No DIFC integrity-filtered events were recorded in the last 7 days — the cached snapshot (age 0 days, valid warm start) and the fresh filtered-logs.json both report zero runs, meaning no tool calls were blocked by the Data Integrity and Flow Control system during this period. This is a positive signal: no contributor or automated actor triggered integrity/secrecy filtering on any MCP tool call.

The one cross-cutting theme is the PR Code Quality Reviewer blocking api.individual.githubcopilot.com:443 20 times — this is likely a legitimate Copilot API endpoint that should be added to the workflow's network allowlist rather than an actual threat.

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🔥 Firewall Analysis

Key Firewall Metrics

Metric	Value
Workflows analyzed (firewall-enabled)	98 (of 100 collected; 2 excluded due to timeout)
Total network requests monitored	4,598
✅ Allowed requests	4,571
🚫 Blocked requests	27
Block rate	0.6%
Total unique blocked domains	2

📈 Firewall Request Trends

All audited runs fell on a single collection day (2026-08-08) within the 7-day lookback window, so the trend line shows one data point rather than a multi-day slope. Allowed traffic (4,571 requests) dwarfs blocked traffic (27 requests), consistent with a healthy, well-scoped egress policy across the fleet.

Top Blocked Domains

Only two distinct blocked-domain entries appeared: api.individual.githubcopilot.com:443 (20 blocks, from PR Code Quality Reviewer) and an unresolved (unknown) domain (7 blocks, from PureLock). Neither pattern suggests malicious activity — the Copilot subdomain block looks like an allowlist gap, and the unresolved domain in PureLock warrants a one-time look at that workflow's raw firewall log to identify the actual hostname.

Most Frequently Blocked Domains

Domain	Times Blocked	Workflows	Category
api.individual.githubcopilot.com:443	20	PR Code Quality Reviewer	Likely legitimate Copilot API (allowlist gap)
(unknown)	7	PureLock	Unresolved — needs raw log inspection

Policy Rule Attribution

📋 Policy: rule counts varied across runs (9–12 rules, SSL Bump disabled, DLP disabled). No per-rule hit/deny breakdown was available in the audited runs (rule_hits arrays were empty in all responses), so no rule-level table could be produced this cycle.

View Detailed Request Patterns by Workflow

Workflow	Allowed	Blocked
PR Sous Chef	1067	0
Package Specification Librarian	310	0
Contribution Check	342	0
Test Quality Sentinel	294	0
Developer Documentation Consolidator	183	0
Daily Issues Report Generator	182	0
Design Decision Gate 🏗️	178	0
Dead Code Removal Agent	174	0
ESLint Miner	159	0
Claude Code User Documentation Review	210	0
Impeccable Skills Reviewer	204	0
Matt Pocock Skills Reviewer	206	0
PureLock	200	7
PR Triage Agent	92	0
PR Description Updater	83	0
Daily Formal Spec Verifier	74	0
Smoke OTEL	71	0
Delight	66	0
AI Moderator	64	0
Daily Malicious Code Scan Agent	58	0
Daily A/B Testing Advisor	44	0
Package Specification Enforcer	42	0
Daily SPDD Spec Planner	40	0
Squad Game Planner	38	0
Terminal Stylist	36	0
Draft PR Cleanup	26	0
Daily Go Function Namer	26	0
Constraint Solving — Problem of the Day	20	0
Issue Monster	14	0
Code Scanning Fixer	14	0
Smoke Copilot Small	12	0
PR Code Quality Reviewer	10	20
Auto-Triage Issues	10	0
Smoke Copilot MAI	8	0
Team Status	8	0
Daily Max Ai Credits Test	6	0

View Complete Blocked Domains List

• (unknown)
• api.individual.githubcopilot.com:443

🔒 Firewall Security Recommendations

1. Allowlist api.individual.githubcopilot.com:443 for the PR Code Quality Reviewer workflow if it is a legitimate Copilot API dependency — verify with the workflow owner before adding.
2. Investigate the (unknown) blocked domain in PureLock by pulling the raw firewall/squid log for one of its recent runs to resolve the actual hostname behind the 7 blocks; do not allowlist blindly.
3. No evidence of malicious or unexpected exfiltration domains was found in this window — continue routine weekly monitoring rather than urgent remediation.
4. Two runs (including this report's own run and one other) timed out during audit collection; consider re-running agenticworkflows audit for those IDs (31264931494, 31265812393 when complete) in a follow-up cycle for full coverage.

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🔒 DIFC Integrity Analysis

No DIFC integrity-filtered events were found in the last 7 days. The warm-start cache snapshot (updated_at within the current window, valid) and the fresh /tmp/gh-aw/agent/integrity/filtered-logs.json both report total_runs: 0 and an empty runs array, meaning no MCP tool calls were blocked by the Data Integrity and Flow Control system during this period. No charts or per-workflow/per-server/per-user breakdowns were generated since there is no underlying data.

💡 DIFC Tuning Recommendations

1. No tuning action is required this cycle — zero filtering events indicates either no integrity/secrecy violations occurred, or DIFC gateway logging was not exercised by any workflow run in the window.
2. Continue monitoring in subsequent daily cycles; if DIFC event volume remains at zero for multiple consecutive reports, consider verifying that DIFC instrumentation/logging is still active in the gateway pipeline (a false "zero events" result could also indicate an instrumentation gap).

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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/31265812393

Generated by 🔒 Daily Security Observability Report · auto · 103.1 AIC · ⌖ 3.77 AIC · ⊞ 14.9K · ◷

• expires on Aug 11, 2026, 8:41 AM UTC-08:00

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A newer discussion is available at Discussion #51613.