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+---
+title: "Weekly Update – August 10, 2026"
+description: "This week brought v0.86.1 with guided gh aw fix diagnostics, expanded engine support, and a heavy security hardening pass in v0.86.0."
+authors:
+  - copilot
+date: 2026-08-10
+metadata:
+  seoDescription: "gh-aw weekly update: v0.86.1 diagnostics, v0.86.0 security hardening, PureLock test coverage, and dozens of merged PRs."
+---
+
+It's been another busy week in [github/gh-aw](https://github.com/github/gh-aw), with two notable releases and dozens of merged pull requests touching everything from compiler safety to CI stability. Here's what shipped.
+
+## Release: v0.86.1
+
+[v0.86.1](https://github.com/github/gh-aw/releases/tag/v0.86.1) landed on August 7th with a broad set of compiler safety fixes, new `gh aw fix` diagnostics, and expanded engine support.
+
+### What's New
+
+- **Guided `gh aw fix` diagnostics**: The tool now offers a guided fix for restricted `tools.bash` allow-listing on engines that ignore it ([#51102](https://github.com/github/gh-aw/pull/51102)), plus tips for known external engines like opencode and crush missing their import ([#51088](https://github.com/github/gh-aw/pull/51088)).
+- **Expanded engine support**: Added shared engine definitions and smoke tests for Pydantic AI ([#51161](https://github.com/github/gh-aw/pull/51161)), plus new example workflows for the aider, cursor, and kiro definition-based engines ([#51166](https://github.com/github/gh-aw/pull/51166)).
+- **PureLock initiative**: Introduced a daily pure-function maximum-coverage test workflow ([#51107](https://github.com/github/gh-aw/pull/51107)) that is progressively locking down core compiler functions with dedicated test suites ([#51167](https://github.com/github/gh-aw/pull/51167), [#51119](https://github.com/github/gh-aw/pull/51119)).
+- **Safe-outputs improvements**: Fixed `add_labels` failing on pull requests in issue-intent paths ([#51168](https://github.com/github/gh-aw/pull/51168)) and replaced loosely-typed bool-or-expression fields with `*TemplatableBool` for safer config typing ([#51097](https://github.com/github/gh-aw/pull/51097)).
+
+## Release: v0.86.0
+
+[v0.86.0](https://github.com/github/gh-aw/releases/tag/v0.86.0) shipped earlier the same day as a heavy security and reliability hardening pass across secret redaction, MCP gateway logging, and threat-detection resilience.
+
+### Security & Redaction
+
+- **Secrets can no longer leak through logs or artifacts.** Redaction is now enforced in step summaries ([#50777](https://github.com/github/gh-aw/pull/50777)), patch/bundle artifacts ([#50778](https://github.com/github/gh-aw/pull/50778)), and MCP gateway diagnostic logs ([#50961](https://github.com/github/gh-aw/pull/50961)).
+- **URL handling hardened**: userinfo is now stripped from logged URLs and rejected URLs are no longer logged in full ([#50776](https://github.com/github/gh-aw/pull/50776)).
+- **`upload_artifact` safe-output** now restricts uploads to canonical allowed roots and rejects sensitive paths ([#50779](https://github.com/github/gh-aw/pull/50779)).
+
+## Notable Pull Requests
+
+Beyond the releases, the team merged a steady stream of fixes and quality-of-life improvements:
+
+- [Skip stale review-thread node IDs instead of failing safe_outputs](https://github.com/github/gh-aw/pull/51630) — makes `resolve_pull_request_review_thread` more resilient to stale GraphQL node IDs.
+- [Grant agentic engines read/write access to /tmp/gh-aw in AWF sandbox](https://github.com/github/gh-aw/pull/51608) — smooths out sandboxed engine runs that need scratch space.
+- [Fix recurring gh-aw-firewall digest-pin loss on DefaultFirewallVersion bumps](https://github.com/github/gh-aw/pull/51423) — keeps firewall image pins from silently drifting on version bumps.
+- [Add explicit end marker syntax for inline skills and sub-agents](https://github.com/github/gh-aw/pull/51446) — clarifies where inline skill and sub-agent content ends in workflow markdown.
+- [Fix Copilot path portability across runners](https://github.com/github/gh-aw/pull/51275) — irons out cross-platform path handling for the Copilot engine.
+
+## 🤖 Agent of the Week: PureLock
+
+PureLock is the daily workflow that quietly locks down up to three uncovered pure Go functions per run, writing dedicated test suites so core compiler logic doesn't regress unnoticed.
+
+This week PureLock ran three times — once from its daily schedule and twice via manual dispatch — clocking in at 15 to 22 minutes per run and burning through roughly 60,000 tokens total. All three runs completed successfully and stayed strictly read-only until their final PR, methodically chipping away at coverage gaps. Its handiwork showed up directly in this week's release notes, with [#51586](https://github.com/github/gh-aw/pull/51586) locking down `sameExpr`, `addAllowedToNetwork`, and `rpcEntryToTimelineEvent` with pure-function test suites.
+
+Give it a function name like `simplifyDataSchemaNode` and it will happily go write exhaustive tests for it without complaint — the kind of unglamorous, repetitive work that keeps a growing Go codebase honest one pure function at a time.
+
+💡 **Usage tip**: Pair a coverage-locking workflow like this with your CI's coverage gate so newly written tests actually prevent regressions instead of just padding a report.
+
+→ [View the workflow on GitHub](https://github.com/github/gh-aw/blob/main/.github/workflows/purelock.md)
+
+## Try It Out
+
+Update to [v0.86.1](https://github.com/github/gh-aw/releases/tag/v0.86.1) today to get the latest diagnostics and security hardening. As always, feedback and contributions are welcome in [github/gh-aw](https://github.com/github/gh-aw).