gpt-5.3-codex is not available on GitHub Copilot. The fallback chains
incorrectly listed github-copilot as a valid provider for this model,
causing the doctor to report 'configured model github-copilot/gpt-5.3-codex
is not valid' for Hephaestus agent.
Affected agents: hephaestus (requiresProvider + fallbackChain)
Affected categories: ultrabrain, deep, unspecified-low
Copilot users can still use Hephaestus via openai or opencode providers.
Fixes#2047
- BUG-7: Add gpt-5-nano as final fallback in multimodal-looker model requirements
- BUG-14: Remove hardcoded LIBRARIAN_MODEL, let librarian resolve through normal fallback chain
- Update snapshots and tests to reflect new fallback behavior
- Add per-message ultrawork mode detection via keyword matching
- Implement deferred DB override strategy using microtask retry loop
- Fall back to setTimeout after 10 microtask retries for robustness
- Update agent configuration schema with ultrawork model/variant fields
- Integrate with chat.message hook to apply overrides on detection
- Add comprehensive tests for all override scenarios
- Generated schema includes ultrawork configuration
🤖 Generated with assistance of OhMyOpenCode (https://github.com/code-yeongyu/oh-my-opencode)
Add alternative providers to free-tier and cross-provider models:
- k2p5: add friendli as alternative to kimi-for-coding
- kimi-k2.5-free, minimax-m2.5-free, big-pickle, gpt-5-nano: add opencode-zen-abuse
- grok-code-fast-1: add venice as alternative to github-copilot
- glm-5: add opencode as alternative to zai-coding-plan
After model version update (opus-4-5 → opus-4-6), several agents had
identical duplicate fallback entries for the same model. The anthropic-only
entry was a superset covered by the broader providers entry, making it dead
code. Consolidate to single entry with all providers.
Hephaestus now appears when any of its providers (openai, github-copilot, opencode) is
connected, rather than requiring the exact gpt-5.2-codex model. This allows users with
newer codex models (e.g., gpt-5.3-codex) to use Hephaestus without manual config overrides.
- Add requiresProvider field to ModelRequirement type
- Add isAnyProviderConnected() helper in model-availability
- Update hephaestus config from requiresModel to requiresProvider
- Update cli model-fallback to handle requiresProvider checks
Add claude-opus-4-6 as the first anthropic provider entry before
claude-opus-4-5 across all agent and category fallback chains.
Also add high variant mapping for think-mode switcher.
Gemini 3 Pro only supports 'low' and 'high' thinking levels according to
Google's official API documentation. The 'max' variant is not supported
and would result in API errors.
Changed variant: 'max' -> 'high' for gemini-3-pro in:
- oracle agent
- metis agent
- momus agent
- ultrabrain category
- deep category
- artistry category
Ref: https://ai.google.dev/gemini-api/docs/thinking-modeCloses#1433
* fix(model-requirements): use supported variant for gemini-3-pro
* fix(delegate-task): update artistry variant to high for gemini-3-pro
- Update DEFAULT_CATEGORIES artistry variant from 'max' to 'high'
- Update related test comment
- gemini-3-pro only supports low/high thinking levels, not max
- Addresses Oracle review feedback
* refactor(keyword-detector): split constants into domain-specific modules
* feat(shared): add requiresAnyModel and isAnyFallbackModelAvailable
* feat(config): add hephaestus to agent schemas
* feat(agents): add Hephaestus autonomous deep worker
* feat(cli): update model-fallback for hephaestus support
* feat(plugin): add hephaestus to config handler with ordering
* test(delegate-task): update tests for hephaestus agent
* docs: update AGENTS.md files for hephaestus
* docs: add hephaestus to READMEs
* chore: regenerate config schema
* fix(delegate-task): bypass requiresModel check when user provides explicit config
* docs(hephaestus): add 4-part context structure for explore/librarian prompts
* docs: fix review comments from cubic (non-breaking changes)
- Move Hephaestus from Primary Agents to Subagents (uses own fallback chain)
- Fix Hephaestus fallback chain documentation (claude-opus-4-5 → gemini-3-pro)
- Add settings.local.json to claude-code-hooks config sources
- Fix delegate_task parameters in ultrawork prompt (agent→subagent_type, background→run_in_background, add load_skills)
- Update line counts in AGENTS.md (index.ts: 788, manager.ts: 1440)
* docs: fix additional documentation inconsistencies from oracle review
- Fix delegate_task parameters in Background Agents example (docs/features.md)
- Fix Hephaestus fallback chain in root AGENTS.md to match model-requirements.ts
* docs: clarify Hephaestus has no fallback (requires gpt-5.2-codex only)
Hephaestus uses requiresModel constraint - it only activates when gpt-5.2-codex
is available. The fallback chain in code is unreachable, so documentation
should not mention fallbacks.
* fix(hephaestus): remove unreachable fallback chain entries
Hephaestus has requiresModel: gpt-5.2-codex which means the agent only
activates when that specific model is available. The fallback entries
(claude-opus-4-5, gemini-3-pro) were unreachable and misleading.
---------
Co-authored-by: justsisyphus <justsisyphus@users.noreply.github.com>
- Add variant: max to ultrabrain's gemini-3-pro fallback entry
- Rename STRATEGIC_CATEGORY_PROMPT_APPEND to ULTRABRAIN_CATEGORY_PROMPT_APPEND
- Keep original strategic advisor prompt content (no micromanagement instructions)
- Update description: use only for genuinely hard tasks, give clear goals only
- Update tests to match renamed constant
Define ModelRequirement type with FallbackEntry chains for multi-provider model resolution. Each agent and category specifies ordered fallback preferences with provider arrays and optional variants.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
