feat: rewrite the Command Code provider on pi's native provider API

Replace the previous implementation with one that registers the Provider API
catalog through pi's own provider layer instead of shipping a custom transport,
cache file, and hand-maintained pricing table.

- models: derive the catalog from the published command-code CLI package
  (context windows, reasoning efforts, image input, output limits, rates) and
  keep it as the offline baseline; scripts/sync-catalog.mjs regenerates it and
  supports --check
- refresh: use refreshModels plus context.publish so pi persists the live
  /provider/v1/models listing in models-store.json and restores it offline
- auth: /login browser transfer through a localhost callback server with a
  pasted-key fallback; $COMMAND_CODE_API_KEY, --api-key and auth.json keep
  working
- streaming: pi's native openai-completions and anthropic-messages adapters;
  the generate-transport fallback and Oh My Pi branches are gone
- keep the context-overflow rewrite that enables pi's compaction retry and the
  /commandcode-quota command
- tests: 51 cases under tests/<module>/ covering models, catalog sync, auth,
  the callback server, overflow handling, quota, and the extension factory

Verified against the live API: chat, tool round trip, image input and
--thinking max on deepseek/deepseek-v4.1-flash, quota output, and catalog
persistence in an interactive session.
This commit is contained in:
2026-09-14 11:19:33 +08:00
parent 8007a6480c
commit 5947e133de
84 changed files with 6644 additions and 16083 deletions
+101 -186
View File
@@ -1,222 +1,137 @@
/**
* Command Code provider for pi.
*
* Uses Command Code's documented Provider API:
* https://api.commandcode.ai/provider/v1
* Registers the Provider API catalog as a pi provider and layers pi's native
* auth, model persistence (`models-store.json`), and OpenAI/Anthropic stream
* adapters on top of it. Chat requests therefore use the same code paths as
* built-in providers and need no custom transport.
*
* Provider API reference: https://api.commandcode.ai/provider/v1
*/
import { AssistantMessageEventStream } from "@earendil-works/pi-ai"
import * as piAiCompat from "@earendil-works/pi-ai/compat"
import { streamSimple as streamNativeProvider } from "@earendil-works/pi-ai/compat"
import {
getAgentDir,
type ExtensionAPI,
type ExtensionCommandContext,
type ProviderConfig,
} from "@earendil-works/pi-coding-agent"
import { join } from "node:path"
import type { Api, Model, RefreshModelsContext } from "@earendil-works/pi-ai"
import type { ExtensionAPI, ProviderConfig } from "@earendil-works/pi-coding-agent"
import { getConfiguredApiKey } from "./src/api-key.ts"
import { pickCommandCodeApiKey, withResolvedCommandCodeApiKey } from "./src/converters.ts"
import { createStreamCommandCode } from "./src/core.ts"
import { calculateCommandCodeCost } from "./src/cost.ts"
import { discoverApiKey } from "./src/api-key.ts"
import { getApiKey, login, refreshToken } from "./src/auth.ts"
import {
apiForModelId,
baseUrlForModel,
DEFAULT_MODELS_URL,
DEFAULT_PROVIDER_API_BASE,
accountApiBase,
fetchLiveCatalog,
getModelsTimeoutMs,
inputModalitiesForModel,
loadCachedCommandCodeModels,
loadCommandCodeModels,
MODEL_EFFORTS,
thinkingMetadataForModel,
modelsFromCatalog,
modelsFromLive,
modelsUrl,
PROVIDER_ID,
providerBaseUrl,
providerHeaders,
toProviderModel,
type CommandCodeModel,
} from "./src/models.ts"
import { getApiKey as getOAuthApiKey, login, refreshToken } from "./src/oauth.ts"
import { normalizeCommandCodeMessage } from "./src/overflow.ts"
import { MODEL_COSTS, ZERO_MODEL_COST } from "./src/pricing.ts"
import { registerCommandCodeQuota } from "./src/quota-command.ts"
import { createCommandCodeRuntime } from "./src/runtime.ts"
import { createCommandCodeTransportRouter } from "./src/transport.ts"
import { fetchCommandCodeQuota } from "./src/quota.ts"
import { formatQuota } from "./src/quota-format.ts"
const COMMAND_CODE_API = "commandcode-custom"
const COMPAT_SOURCE_ID = "pi-commandcode-provider"
type CompatStreamFunction = (
model: Parameters<typeof streamNativeProvider>[0],
context: Parameters<typeof streamNativeProvider>[1],
options?: Parameters<typeof streamNativeProvider>[2],
) => AssistantMessageEventStream
type ProviderModelConfig = NonNullable<ProviderConfig["models"]>[number]
/**
* pi's compat entrypoint exposes `registerApiProvider`; Oh My Pi maps
* `@earendil-works/pi-ai/compat` onto its own pi-ai, which lacks that export
* and registers custom APIs itself inside `registerProvider`. Resolve the
* function at runtime so the extension loads on both hosts.
* pi resolves this env template itself; leaving it unresolved means "not
* configured", so /login credentials and --api-key keep working.
*/
function compatApiProviderRegistrar(): ((...args: unknown[]) => unknown) | undefined {
const register = (piAiCompat as { registerApiProvider?: unknown }).registerApiProvider
return typeof register === "function" ? (register as (...args: unknown[]) => unknown) : undefined
}
const API_KEY_ENV_REFERENCE = "$COMMAND_CODE_API_KEY"
function registerCompatApiProvider(stream: CompatStreamFunction): void {
compatApiProviderRegistrar()?.(
{ api: COMMAND_CODE_API, stream, streamSimple: stream },
COMPAT_SOURCE_ID,
)
}
/**
* The `apiKey` handed to `registerProvider` means different things per host.
*
* pi parses `$COMMAND_CODE_API_KEY` as an env template: unresolved means
* "not configured", so `/login` credentials and `--api-key` take over, and
* the entry keeps the API-key auth method registered next to OAuth. Without
* it pi composes an OAuth-only provider and drops stored `api_key`
* credentials and `--api-key`.
*
* Oh My Pi has no template notion: an unresolved value stays a literal config
* override that shadows its `/login` credential store and is sent verbatim as
* `Authorization: Bearer $COMMAND_CODE_API_KEY`. There, omit `apiKey` unless
* a real key is configured; OMP then reads env keys and stored credentials
* itself.
*
* Hosts are told apart by the same `registerApiProvider` probe used for the
* compat registry: pi exports it, OMP does not.
*/
function providerApiKey(): string | undefined {
const configured = pickCommandCodeApiKey(getConfiguredApiKey(), undefined)
if (configured) return configured
return compatApiProviderRegistrar() ? "$COMMAND_CODE_API_KEY" : undefined
}
function commandCodeHeaders(): Record<string, string> | undefined {
if (process.env.CMD_ZDR === "1" || process.env.COMMANDCODE_ZDR === "1") {
return { "x-cmd-zdr": "1" }
}
return undefined
}
function createProviderConfig(
models: readonly CommandCodeModel[],
apiBase: string,
streamCommandCode: ProviderConfig["streamSimple"],
): ProviderConfig {
const headers = commandCodeHeaders()
/** Models are stored in pi's own catalog cache, which expects full models. */
function toStoredModel(model: CommandCodeModel, apiBase: string): Model<"openai-completions" | "anthropic-messages"> {
const config = toProviderModel(model, apiBase)
return {
...config,
api: model.api,
provider: PROVIDER_ID,
baseUrl: config.baseUrl ?? apiBase,
} as Model<"openai-completions" | "anthropic-messages">
}
export default function commandCodeProvider(pi: ExtensionAPI): void {
const apiBase = providerBaseUrl()
const catalogUrl = modelsUrl()
const catalogTimeoutMs = getModelsTimeoutMs()
const headers = providerHeaders()
const baseline = modelsFromCatalog()
pi.registerProvider(PROVIDER_ID, {
name: "Command Code",
baseUrl: apiBase,
apiKey: providerApiKey(),
api: COMMAND_CODE_API,
streamSimple: streamCommandCode,
headers,
apiKey: API_KEY_ENV_REFERENCE,
api: "openai-completions",
...(headers ? { headers } : {}),
models: baseline.map((model) => toProviderModel(model, apiBase)),
oauth: {
name: "Command Code",
isSubscription: true,
login,
refreshToken,
getApiKey: getOAuthApiKey,
getApiKey,
},
models: models.map((model) => ({
id: model.id,
name: model.name,
api: COMMAND_CODE_API,
baseUrl: baseUrlForModel(apiBase, model.api),
reasoning: model.reasoning,
...(thinkingMetadataForModel(model.id) ?? {}),
input: [...inputModalitiesForModel(model.id)],
cost: MODEL_COSTS[model.id] ?? ZERO_MODEL_COST,
contextWindow: model.contextWindow,
maxTokens: model.maxTokens,
headers,
compat:
model.api === "openai-completions"
? {
supportsStore: false,
supportsDeveloperRole: false,
supportsReasoningEffort: MODEL_EFFORTS[model.id] !== undefined,
maxTokensField: "max_tokens",
}
: {
supportsEagerToolInputStreaming: false,
supportsLongCacheRetention: false,
supportsCacheControlOnTools: false,
supportsToolReferences: false,
...(model.reasoning ? { forceAdaptiveThinking: true } : {}),
refreshModels: async (context: RefreshModelsContext): Promise<ProviderModelConfig[]> => {
const stored = (context.stored?.models ?? []).filter(
(model: Model<Api>) => model.provider === PROVIDER_ID,
)
if (context.allowNetwork && !context.signal.aborted) {
try {
const live = await fetchLiveCatalog({
url: catalogUrl,
timeoutMs: catalogTimeoutMs,
signal: context.signal,
})
const models = modelsFromLive(live)
await context.publish({
persist: {
models: models.map((model) => toStoredModel(model, apiBase)),
checkedAt: Date.now(),
},
})),
}
}
})
return models.map((model) => toProviderModel(model, apiBase))
} catch {
// An unreachable endpoint keeps the persisted or generated catalog.
}
}
function legacyApiBase(providerApiBase: string): string {
return providerApiBase.replace(/\/provider\/v1\/?$/, "")
}
export default async function (pi: ExtensionAPI) {
const apiBase = process.env.COMMANDCODE_API_BASE ?? DEFAULT_PROVIDER_API_BASE
const modelsUrl = process.env.COMMANDCODE_MODELS_URL ?? DEFAULT_MODELS_URL
const modelsTimeoutMs = getModelsTimeoutMs()
const modelsCachePath =
process.env.COMMANDCODE_MODELS_CACHE ?? join(getAgentDir(), "commandcode-models.json")
const streamGenerate = createStreamCommandCode({
createStream: () => new AssistantMessageEventStream(),
calculateCost: calculateCommandCodeCost,
apiBase: legacyApiBase(apiBase),
})
const resolveStreamOptions = (options?: Parameters<typeof streamNativeProvider>[2]) =>
withResolvedCommandCodeApiKey(options, getConfiguredApiKey())
const transport = createCommandCodeTransportRouter({
createStream: () => new AssistantMessageEventStream(),
streamProvider: (model, context, options) =>
streamNativeProvider(
{ ...model, api: apiForModelId(model.id), compat: model.compatConfig ?? model.compat },
context,
resolveStreamOptions(options),
),
streamGenerate: (model, context, options) =>
streamGenerate(model, context, resolveStreamOptions(options)),
if (stored.length > 0) return stored as ProviderModelConfig[]
return baseline.map((model) => toProviderModel(model, apiBase))
},
})
// pi dispatches the main chat through the registered provider, but sibling
// extensions that call `streamSimple` from `@earendil-works/pi-ai/compat`
// with a Command Code model resolve `model.api` through the compat
// api-registry, which knows nothing about extension providers. Register the
// custom api there so those calls reach the same transport. The registry
// resolves no credentials for extension providers, so fall back to the
// configured key when the caller passes none or a placeholder.
const compatStream: CompatStreamFunction = (model, context, options) =>
transport.stream(model, context, resolveStreamOptions(options)) as AssistantMessageEventStream
registerCompatApiProvider(compatStream)
pi.on("message_end", async (event, ctx) => {
// pi only auto-compacts when it recognizes the overflow wording; Command Code
// reports context limits in its own phrasing.
pi.on("message_end", (event, ctx) => {
if (event.message.role !== "assistant") return
const normalized = normalizeCommandCodeMessage(event.message, ctx.model?.provider)
return normalized ? { message: normalized.message } : undefined
})
registerCommandCodeQuota(pi, {
apiBase: legacyApiBase(apiBase),
headers: commandCodeHeaders(),
})
pi.registerCommand("commandcode-quota", {
description: "Show Command Code account usage and quota",
handler: async (_args, ctx) => {
await ctx.waitForIdle()
const apiKey = discoverApiKey()
if (!apiKey) {
ctx.ui.notify(
"No Command Code API key found. Run /login and select Command Code, or set COMMAND_CODE_API_KEY.",
"warning",
)
return
}
const runtime = createCommandCodeRuntime<ProviderConfig, ExtensionCommandContext>(pi, {
endpoint: modelsUrl,
cachePath: modelsCachePath,
loadModels: (signal) =>
loadCommandCodeModels({
url: modelsUrl,
cachePath: modelsCachePath,
timeoutMs: modelsTimeoutMs,
signal,
}),
loadCachedModels: () => loadCachedCommandCodeModels(modelsCachePath),
createProviderConfig: (models) => createProviderConfig(models, apiBase, transport.stream),
getTransport: transport.getTransport,
const result = await fetchCommandCodeQuota({
apiKey,
baseUrl: accountApiBase(apiBase),
...(headers ? { headers } : {}),
})
if (!result.ok) {
ctx.ui.notify(result.error, "error")
return
}
ctx.ui.notify(formatQuota(result.quota), "info")
},
})
pi.on("session_shutdown", () => {
runtime.dispose()
})
await runtime.initialize()
}