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great_cto

v2.65.0 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

agentic-coding claude-code-plugin claude-code-skills claude-code-subagents code-review cto
+2 more
multi-agent sdlc

Summary

AI summary

Adds support for Anthropic's Fable 5 model and an agent‑model override in the config.

Changes in this release

Feature Medium

Adds support for Anthropic's Fable 5 model (`claude-fable-5`).

Adds support for Anthropic's Fable 5 model (`claude-fable-5`).

Source: llm_adapter@2026-06-10

Confidence: high

Feature Medium

Introduces `agent-model: fable` override in `~/.great_cto/config` to pin agents to Fable 5.

Introduces `agent-model: fable` override in `~/.great_cto/config` to pin agents to Fable 5.

Source: llm_adapter@2026-06-10

Confidence: high

Feature Medium

Recognizes `fable` / `claude-fable-5` as the newest deepest tier in lint policy, accepted where Opus is allowed.

Recognizes `fable` / `claude-fable-5` as the newest deepest tier in lint policy, accepted where Opus is allowed.

Source: llm_adapter@2026-06-10

Confidence: high

Feature Medium

Board agent runner passes `--model` verbatim, enabling `claude-fable-5` without additional changes.

Board agent runner passes `--model` verbatim, enabling `claude-fable-5` without additional changes.

Source: llm_adapter@2026-06-10

Confidence: high

Bugfix Low

Verifies agent-model override e2e: repins to `model: fable` and rejects invalid values.

Verifies agent-model override e2e: repins to `model: fable` and rejects invalid values.

Source: llm_adapter@2026-06-10

Confidence: high

Bugfix Low

Ensures lint tier policy correctly handles 6/6 Fable 5 cases.

Ensures lint tier policy correctly handles 6/6 Fable 5 cases.

Source: llm_adapter@2026-06-10

Confidence: high

Bugfix Low

Confirms library compatibility: 348/348 tests pass with Fable 5.

Confirms library compatibility: 348/348 tests pass with Fable 5.

Source: llm_adapter@2026-06-10

Confidence: high

Full changelog

Adds support for Anthropic's newest model, Fable 5 (claude-fable-5):

  • Agent-model overrideagent-model: fable in ~/.great_cto/config pins every managed agent/command to Fable 5 (alongside opus|sonnet|haiku).
  • Lint tier policyfable / claude-fable-5 recognised as the newest deepest tier: accepted anywhere the policy allows opus; still flagged for haiku-only utility agents.
  • The board agent runner passes --model through verbatim, so claude-fable-5 already works there with no change.

Verified: override e2e (repins to model: fable, rejects bogus values), 6/6 lint tier cases, lib 348/348.

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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.

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Related context

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]