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fix(cli): include fallback_models when writing agent model config (#3144)

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Installer now generates fallback_models array alongside explicit model
overrides, preserving the fallback chain.

46 tests pass, tsc clean.

Closes #3144
This commit is contained in:
YeonGyu-Kim
2026-04-07 15:24:00 +09:00
parent e8c8376db4
commit bb1bad8e02
3 changed files with 218 additions and 11 deletions
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src/cli/model-fallback.ts
+41 -11
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@@ -37,22 +37,29 @@ function toFallbackModelObject(entry: FallbackEntry, provider: string): Fallback
}
}
function attachFallbackModels<T extends AgentConfig | CategoryConfig>(
config: T,
function collectAvailableFallbacks(
fallbackChain: FallbackEntry[],
availability: ReturnType<typeof toProviderAvailability>,
): T {
): FallbackModelObject[] {
const expandedFallbacks = fallbackChain.flatMap((entry) =>
entry.providers
.filter((provider) => isProviderAvailable(provider, availability))
.map((provider) => toFallbackModelObject(entry, provider))
)
const uniqueFallbacks = expandedFallbacks.filter((entry, index, allEntries) =>
return expandedFallbacks.filter((entry, index, allEntries) =>
allEntries.findIndex((candidate) =>
candidate.model === entry.model &&
candidate.variant === entry.variant
) === index
)
}
function attachFallbackModels<T extends AgentConfig | CategoryConfig>(
config: T,
fallbackChain: FallbackEntry[],
availability: ReturnType<typeof toProviderAvailability>,
): T {
const uniqueFallbacks = collectAvailableFallbacks(fallbackChain, availability)
const primaryIndex = uniqueFallbacks.findIndex((entry) => entry.model === config.model)
if (primaryIndex === -1) {
return config
@@ -69,6 +76,23 @@ function attachFallbackModels<T extends AgentConfig | CategoryConfig>(
}
}
function attachAllFallbackModels<T extends AgentConfig | CategoryConfig>(
config: T,
fallbackChain: FallbackEntry[],
availability: ReturnType<typeof toProviderAvailability>,
): T {
const uniqueFallbacks = collectAvailableFallbacks(fallbackChain, availability)
const fallbackModels = uniqueFallbacks.filter((entry) => entry.model !== config.model)
if (fallbackModels.length === 0) {
return config
}
return {
...config,
fallback_models: fallbackModels,
}
}
export function generateModelConfig(config: InstallConfig): GeneratedOmoConfig {
@@ -101,26 +125,32 @@ export function generateModelConfig(config: InstallConfig): GeneratedOmoConfig {
for (const [role, req] of Object.entries(CLI_AGENT_MODEL_REQUIREMENTS)) {
if (role === "librarian") {
let agentConfig: AgentConfig | undefined
if (avail.opencodeGo) {
agents[role] = { model: "opencode-go/minimax-m2.7" }
agentConfig = { model: "opencode-go/minimax-m2.7" }
} else if (avail.zai) {
agents[role] = { model: ZAI_MODEL }
agentConfig = { model: ZAI_MODEL }
}
if (agentConfig) {
agents[role] = attachAllFallbackModels(agentConfig, req.fallbackChain, avail)
}
continue
}
if (role === "explore") {
let agentConfig: AgentConfig
if (avail.native.claude) {
agents[role] = { model: "anthropic/claude-haiku-4-5" }
agentConfig = { model: "anthropic/claude-haiku-4-5" }
} else if (avail.opencodeZen) {
agents[role] = { model: "opencode/claude-haiku-4-5" }
agentConfig = { model: "opencode/claude-haiku-4-5" }
} else if (avail.opencodeGo) {
agents[role] = { model: "opencode-go/minimax-m2.7" }
agentConfig = { model: "opencode-go/minimax-m2.7" }
} else if (avail.copilot) {
agents[role] = { model: "github-copilot/gpt-5-mini" }
agentConfig = { model: "github-copilot/gpt-5-mini" }
} else {
agents[role] = { model: "opencode/gpt-5-nano" }
agentConfig = { model: "opencode/gpt-5-nano" }
}
agents[role] = attachAllFallbackModels(agentConfig, req.fallbackChain, avail)
continue
}