This release adds 3 notable features for engineering teams evaluating rollout.
✓ No known CVEs patched in this version
Topics
+2 more
Summary
AI summaryRestores review recall, sets high effort defaults, improves subagent fan-out steering, and adds a frontend-aesthetics guard.
Changes in this release
| Type | Severity | Summary | CVE |
|---|---|---|---|
| Bugfix | Medium |
/review command now separates finding and filter stages, restoring recall for low-severity/uncertain findings /review command now separates finding and filter stages, restoring recall for low-severity/uncertain findings Source: llm_adapter@2026-06-13 Confidence: high |
— |
| Bugfix | Medium |
Board agent runner sets `CLAUDE_EFFORT=xhigh` and `CLAUDE_CODE_MAX_OUTPUT_TOKENS=64000`, preventing effort stripping Board agent runner sets `CLAUDE_EFFORT=xhigh` and `CLAUDE_CODE_MAX_OUTPUT_TOKENS=64000`, preventing effort stripping Source: llm_adapter@2026-06-13 Confidence: high |
— |
| Bugfix | Medium |
Subagent fan‑out steering added for Claude Opus 4.8 to address under‑spawning Subagent fan‑out steering added for Claude Opus 4.8 to address under‑spawning Source: llm_adapter@2026-06-13 Confidence: high |
— |
| Bugfix | Medium |
Frontend‑aesthetics guard now steers away from Claude 4.8's default editorial cream/serif style for regulated dashboards Frontend‑aesthetics guard now steers away from Claude 4.8's default editorial cream/serif style for regulated dashboards Source: llm_adapter@2026-06-13 Confidence: high |
— |
Full changelog
Tuned the agent layer for Claude Opus 4.8 (and the Fable/4.x family)
Four behavioral-delta fixes (plan: docs/plans/PLAN-opus48-tuning.md):
- Review recall —
/reviewseparates finding (coverage: surface every issue + confidence, no self-filter) from filter (skeptical triage). 4.8 under-reports low-severity/uncertain findings when told to 'report blockers'; this restores recall without more false-positive gate blocks. - Effort = xhigh — board agent runner sets
CLAUDE_EFFORT=xhigh(was stripped → under-thinking) +CLAUDE_CODE_MAX_OUTPUT_TOKENS=64000, both overridable. senior-dev/architect → XHIGH. - Subagent fan-out steering — 4.8 under-spawns; architect + senior-dev get explicit fan-out guidance.
- Frontend-aesthetics guard — steer off 4.8's editorial cream/serif default (wrong for regulated dashboards); architect sets UI direction in ARCH +
<frontend_aesthetics>guard; /review flags the default.
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About great_cto
Engineering-management layer of 34 specialist AI agents covering the full SDLC (architect, PM, senior-dev, reviewer, QA, security, devops, L3-support + 18 archetype-specific reviewers) with auto-detected archetypes and compliance gates (PCI-DSS, HIPAA, FedRAMP, GDPR, EU AI Act). Runs in Claude Code, Cursor, Codex CLI, Aider, and Continue via AGENTS.md + MCP. MIT.
Related context
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Earlier breaking changes
- v2.72.2 Removes Autopilot sidebar item and Operate topbar button from dev board.
- v2.55.0 Hard-gates the Build board; redirects invite sessions to Operate for operators.
- v2.43.0 Runtime now blocks autonomous execution of irreversible actions without prior human checkpoint.
- v2.43.0 Adds reversible and blastRadius fields to every flow step.
- v2.32.0 Removed AgentShield scanner and its CLI commands.
Beta — feedback welcome: [email protected]