feat(costs): add billing, quota, and budget control plane

packages/adapters/claude-local/package.json

@@ -38,7 +38,9 @@
   "scripts": {
     "build": "tsc",
     "clean": "rm -rf dist",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "probe:quota": "pnpm exec tsx src/cli/quota-probe.ts --json",
+    "probe:quota:raw": "pnpm exec tsx src/cli/quota-probe.ts --json --raw-cli"
   },
   "dependencies": {
     "@paperclipai/adapter-utils": "workspace:*",

packages/adapters/claude-local/src/cli/quota-probe.ts

@@ -0,0 +1,124 @@
+#!/usr/bin/env node
+
+import {
+  captureClaudeCliUsageText,
+  fetchClaudeCliQuota,
+  fetchClaudeQuota,
+  getQuotaWindows,
+  parseClaudeCliUsageText,
+  readClaudeAuthStatus,
+  readClaudeToken,
+} from "../server/quota.js";
+
+interface ProbeArgs {
+  json: boolean;
+  includeRawCli: boolean;
+  oauthOnly: boolean;
+  cliOnly: boolean;
+}
+
+function parseArgs(argv: string[]): ProbeArgs {
+  return {
+    json: argv.includes("--json"),
+    includeRawCli: argv.includes("--raw-cli"),
+    oauthOnly: argv.includes("--oauth-only"),
+    cliOnly: argv.includes("--cli-only"),
+  };
+}
+
+function stringifyError(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}
+
+async function main() {
+  const args = parseArgs(process.argv.slice(2));
+  if (args.oauthOnly && args.cliOnly) {
+    throw new Error("Choose either --oauth-only or --cli-only, not both.");
+  }
+
+  const authStatus = await readClaudeAuthStatus();
+  const token = await readClaudeToken();
+
+  const result: Record<string, unknown> = {
+    timestamp: new Date().toISOString(),
+    authStatus,
+    tokenAvailable: token != null,
+  };
+
+  if (!args.cliOnly) {
+    if (!token) {
+      result.oauth = {
+        ok: false,
+        error: "No Claude OAuth access token found in local credentials files.",
+        windows: [],
+      };
+    } else {
+      try {
+        result.oauth = {
+          ok: true,
+          windows: await fetchClaudeQuota(token),
+        };
+      } catch (error) {
+        result.oauth = {
+          ok: false,
+          error: stringifyError(error),
+          windows: [],
+        };
+      }
+    }
+  }
+
+  if (!args.oauthOnly) {
+    try {
+      const rawCliText = args.includeRawCli ? await captureClaudeCliUsageText() : null;
+      const windows = rawCliText ? parseClaudeCliUsageText(rawCliText) : await fetchClaudeCliQuota();
+      result.cli = rawCliText
+        ? {
+            ok: true,
+            windows,
+            rawText: rawCliText,
+          }
+        : {
+            ok: true,
+            windows,
+          };
+    } catch (error) {
+      result.cli = {
+        ok: false,
+        error: stringifyError(error),
+        windows: [],
+      };
+    }
+  }
+
+  if (!args.oauthOnly && !args.cliOnly) {
+    try {
+      result.aggregated = await getQuotaWindows();
+    } catch (error) {
+      result.aggregated = {
+        ok: false,
+        error: stringifyError(error),
+      };
+    }
+  }
+
+  const oauthOk = (result.oauth as { ok?: boolean } | undefined)?.ok === true;
+  const cliOk = (result.cli as { ok?: boolean } | undefined)?.ok === true;
+  const aggregatedOk = (result.aggregated as { ok?: boolean } | undefined)?.ok === true;
+  const ok = oauthOk || cliOk || aggregatedOk;
+
+  if (args.json || process.stdout.isTTY === false) {
+    console.log(JSON.stringify({ ok, ...result }, null, 2));
+  } else {
+    console.log(`timestamp: ${result.timestamp}`);
+    console.log(`auth: ${JSON.stringify(authStatus)}`);
+    console.log(`tokenAvailable: ${token != null}`);
+    if (result.oauth) console.log(`oauth: ${JSON.stringify(result.oauth, null, 2)}`);
+    if (result.cli) console.log(`cli: ${JSON.stringify(result.cli, null, 2)}`);
+    if (result.aggregated) console.log(`aggregated: ${JSON.stringify(result.aggregated, null, 2)}`);
+  }
+
+  if (!ok) process.exitCode = 1;
+}
+
+await main();

packages/adapters/claude-local/src/server/execute.ts

@@ -340,7 +340,12 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
     graceSec,
     extraArgs,
   } = runtimeConfig;
-  const billingType = resolveClaudeBillingType(env);
+  const effectiveEnv = Object.fromEntries(
+    Object.entries({ ...process.env, ...env }).filter(
+      (entry): entry is [string, string] => typeof entry[1] === "string",
+    ),
+  );
+  const billingType = resolveClaudeBillingType(effectiveEnv);
   const skillsDir = await buildSkillsDir();
 
   // When instructionsFilePath is configured, create a combined temp file that
@@ -547,6 +552,7 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
       sessionParams: resolvedSessionParams,
       sessionDisplayId: resolvedSessionId,
       provider: "anthropic",
+      biller: "anthropic",
       model: parsedStream.model || asString(parsed.model, model),
       billingType,
       costUsd: parsedStream.costUsd ?? asNumber(parsed.total_cost_usd, 0),

packages/adapters/claude-local/src/server/index.ts

@@ -8,8 +8,12 @@ export {
 } from "./parse.js";
 export {
   getQuotaWindows,
+  readClaudeAuthStatus,
   readClaudeToken,
   fetchClaudeQuota,
+  fetchClaudeCliQuota,
+  captureClaudeCliUsageText,
+  parseClaudeCliUsageText,
   toPercent,
   fetchWithTimeout,
   claudeConfigDir,

packages/adapters/claude-local/src/server/quota.ts

@@ -1,16 +1,91 @@
+import { execFile } from "node:child_process";
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
+import { promisify } from "node:util";
 import type { ProviderQuotaResult, QuotaWindow } from "@paperclipai/adapter-utils";
 
+const execFileAsync = promisify(execFile);
+
+const CLAUDE_USAGE_SOURCE_OAUTH = "anthropic-oauth";
+const CLAUDE_USAGE_SOURCE_CLI = "claude-cli";
+
 export function claudeConfigDir(): string {
   const fromEnv = process.env.CLAUDE_CONFIG_DIR;
   if (typeof fromEnv === "string" && fromEnv.trim().length > 0) return fromEnv.trim();
   return path.join(os.homedir(), ".claude");
 }
 
-export async function readClaudeToken(): Promise<string | null> {
-  const credPath = path.join(claudeConfigDir(), "credentials.json");
+function hasNonEmptyProcessEnv(key: string): boolean {
+  const value = process.env[key];
+  return typeof value === "string" && value.trim().length > 0;
+}
+
+function createClaudeQuotaEnv(): Record<string, string> {
+  const env: Record<string, string> = {};
+  for (const [key, value] of Object.entries(process.env)) {
+    if (typeof value !== "string") continue;
+    if (key.startsWith("ANTHROPIC_")) continue;
+    env[key] = value;
+  }
+  return env;
+}
+
+function stripBackspaces(text: string): string {
+  let out = "";
+  for (const char of text) {
+    if (char === "\b") {
+      out = out.slice(0, -1);
+    } else {
+      out += char;
+    }
+  }
+  return out;
+}
+
+function stripAnsi(text: string): string {
+  return text
+    .replace(/\u001B\][^\u0007]*(?:\u0007|\u001B\\)/g, "")
+    .replace(/\u001B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])/g, "");
+}
+
+function cleanTerminalText(text: string): string {
+  return stripAnsi(stripBackspaces(text))
+    .replace(/\u0000/g, "")
+    .replace(/\r/g, "\n");
+}
+
+function normalizeForLabelSearch(text: string): string {
+  return text.toLowerCase().replace(/[^a-z0-9]+/g, "");
+}
+
+function trimToLatestUsagePanel(text: string): string | null {
+  const lower = text.toLowerCase();
+  const settingsIndex = lower.lastIndexOf("settings:");
+  if (settingsIndex < 0) return null;
+  let tail = text.slice(settingsIndex);
+  const tailLower = tail.toLowerCase();
+  if (!tailLower.includes("usage")) return null;
+  if (!tailLower.includes("current session") && !tailLower.includes("loading usage")) return null;
+  const stopMarkers = [
+    "status dialog dismissed",
+    "checking for updates",
+    "press ctrl-c again to exit",
+  ];
+  let stopIndex = -1;
+  for (const marker of stopMarkers) {
+    const markerIndex = tailLower.indexOf(marker);
+    if (markerIndex >= 0 && (stopIndex === -1 || markerIndex < stopIndex)) {
+      stopIndex = markerIndex;
+    }
+  }
+  if (stopIndex >= 0) {
+    tail = tail.slice(0, stopIndex);
+  }
+  return tail;
+}
+
+async function readClaudeTokenFromFile(credPath: string): Promise<string | null> {
   let raw: string;
   try {
     raw = await fs.readFile(credPath, "utf8");
@@ -31,22 +106,93 @@ export async function readClaudeToken(): Promise<string | null> {
   return typeof token === "string" && token.length > 0 ? token : null;
 }
 
+interface ClaudeAuthStatus {
+  loggedIn: boolean;
+  authMethod: string | null;
+  subscriptionType: string | null;
+}
+
+export async function readClaudeAuthStatus(): Promise<ClaudeAuthStatus | null> {
+  try {
+    const { stdout } = await execFileAsync("claude", ["auth", "status"], {
+      env: process.env,
+      timeout: 5_000,
+      maxBuffer: 1024 * 1024,
+    });
+    const parsed = JSON.parse(stdout) as Record<string, unknown>;
+    return {
+      loggedIn: parsed.loggedIn === true,
+      authMethod: typeof parsed.authMethod === "string" ? parsed.authMethod : null,
+      subscriptionType: typeof parsed.subscriptionType === "string" ? parsed.subscriptionType : null,
+    };
+  } catch {
+    return null;
+  }
+}
+
+function describeClaudeSubscriptionAuth(status: ClaudeAuthStatus | null): string | null {
+  if (!status?.loggedIn || status.authMethod !== "claude.ai") return null;
+  return status.subscriptionType
+    ? `Claude is logged in via claude.ai (${status.subscriptionType})`
+    : "Claude is logged in via claude.ai";
+}
+
+export async function readClaudeToken(): Promise<string | null> {
+  const configDir = claudeConfigDir();
+  for (const filename of [".credentials.json", "credentials.json"]) {
+    const token = await readClaudeTokenFromFile(path.join(configDir, filename));
+    if (token) return token;
+  }
+  return null;
+}
+
 interface AnthropicUsageWindow {
   utilization?: number | null;
   resets_at?: string | null;
 }
 
+interface AnthropicExtraUsage {
+  is_enabled?: boolean | null;
+  monthly_limit?: number | null;
+  used_credits?: number | null;
+  utilization?: number | null;
+  currency?: string | null;
+}
+
 interface AnthropicUsageResponse {
   five_hour?: AnthropicUsageWindow | null;
   seven_day?: AnthropicUsageWindow | null;
   seven_day_sonnet?: AnthropicUsageWindow | null;
   seven_day_opus?: AnthropicUsageWindow | null;
+  extra_usage?: AnthropicExtraUsage | null;
+}
+
+function formatCurrencyAmount(value: number, currency: string | null | undefined): string {
+  const code = typeof currency === "string" && currency.trim().length > 0 ? currency.trim().toUpperCase() : "USD";
+  return new Intl.NumberFormat("en-US", {
+    style: "currency",
+    currency: code,
+    maximumFractionDigits: 2,
+  }).format(value);
+}
+
+function formatExtraUsageLabel(extraUsage: AnthropicExtraUsage): string | null {
+  const monthlyLimit = extraUsage.monthly_limit;
+  const usedCredits = extraUsage.used_credits;
+  if (
+    typeof monthlyLimit !== "number" ||
+    !Number.isFinite(monthlyLimit) ||
+    typeof usedCredits !== "number" ||
+    !Number.isFinite(usedCredits)
+  ) {
+    return null;
+  }
+  return `${formatCurrencyAmount(usedCredits, extraUsage.currency)} / ${formatCurrencyAmount(monthlyLimit, extraUsage.currency)}`;
 }
 
 /** Convert a 0-1 utilization fraction to a 0-100 integer percent. Returns null for null/undefined input. */
 export function toPercent(utilization: number | null | undefined): number | null {
   if (utilization == null) return null;
-  // utilization is 0-1 fraction; clamp to 100 in case of floating-point overshoot
   return Math.min(100, Math.round(utilization * 100));
 }
 
@@ -64,7 +210,7 @@ export async function fetchWithTimeout(url: string, init: RequestInit, ms = 8000
 export async function fetchClaudeQuota(token: string): Promise<QuotaWindow[]> {
   const resp = await fetchWithTimeout("https://api.anthropic.com/api/oauth/usage", {
     headers: {
-      "Authorization": `Bearer ${token}`,
+      Authorization: `Bearer ${token}`,
       "anthropic-beta": "oauth-2025-04-20",
     },
   });
@@ -74,44 +220,312 @@ export async function fetchClaudeQuota(token: string): Promise<QuotaWindow[]> {
 
   if (body.five_hour != null) {
     windows.push({
-      label: "5h",
+      label: "Current session",
       usedPercent: toPercent(body.five_hour.utilization),
       resetsAt: body.five_hour.resets_at ?? null,
       valueLabel: null,
+      detail: null,
     });
   }
   if (body.seven_day != null) {
     windows.push({
-      label: "7d",
+      label: "Current week (all models)",
       usedPercent: toPercent(body.seven_day.utilization),
       resetsAt: body.seven_day.resets_at ?? null,
       valueLabel: null,
+      detail: null,
     });
   }
   if (body.seven_day_sonnet != null) {
     windows.push({
-      label: "Sonnet 7d",
+      label: "Current week (Sonnet only)",
       usedPercent: toPercent(body.seven_day_sonnet.utilization),
       resetsAt: body.seven_day_sonnet.resets_at ?? null,
       valueLabel: null,
+      detail: null,
     });
   }
   if (body.seven_day_opus != null) {
     windows.push({
-      label: "Opus 7d",
+      label: "Current week (Opus only)",
       usedPercent: toPercent(body.seven_day_opus.utilization),
       resetsAt: body.seven_day_opus.resets_at ?? null,
       valueLabel: null,
+      detail: null,
+    });
+  }
+  if (body.extra_usage != null) {
+    windows.push({
+      label: "Extra usage",
+      usedPercent: body.extra_usage.is_enabled === false ? null : toPercent(body.extra_usage.utilization),
+      resetsAt: null,
+      valueLabel:
+        body.extra_usage.is_enabled === false
+          ? "Not enabled"
+          : formatExtraUsageLabel(body.extra_usage),
+      detail:
+        body.extra_usage.is_enabled === false
+          ? "Extra usage not enabled"
+          : "Monthly extra usage pool",
     });
   }
   return windows;
 }
 
-export async function getQuotaWindows(): Promise<ProviderQuotaResult> {
-  const token = await readClaudeToken();
-  if (!token) {
-    return { provider: "anthropic", ok: false, error: "no local claude auth token", windows: [] };
-  }
-  const windows = await fetchClaudeQuota(token);
-  return { provider: "anthropic", ok: true, windows };
+function usageOutputLooksRelevant(text: string): boolean {
+  const normalized = normalizeForLabelSearch(text);
+  return normalized.includes("currentsession")
+    || normalized.includes("currentweek")
+    || normalized.includes("loadingusage")
+    || normalized.includes("failedtoloadusagedata")
+    || normalized.includes("tokenexpired")
+    || normalized.includes("authenticationerror")
+    || normalized.includes("ratelimited");
+}
+
+function usageOutputLooksComplete(text: string): boolean {
+  const normalized = normalizeForLabelSearch(text);
+  if (
+    normalized.includes("failedtoloadusagedata")
+    || normalized.includes("tokenexpired")
+    || normalized.includes("authenticationerror")
+    || normalized.includes("ratelimited")
+  ) {
+    return true;
+  }
+  return normalized.includes("currentsession")
+    && (normalized.includes("currentweek") || normalized.includes("extrausage"))
+    && /[0-9]{1,3}(?:\.[0-9]+)?%/i.test(text);
+}
+
+function extractUsageError(text: string): string | null {
+  const lower = text.toLowerCase();
+  const compact = lower.replace(/\s+/g, "");
+  if (lower.includes("token_expired") || lower.includes("token has expired")) {
+    return "Claude CLI token expired. Run `claude login` to refresh.";
+  }
+  if (lower.includes("authentication_error")) {
+    return "Claude CLI authentication error. Run `claude login`.";
+  }
+  if (lower.includes("rate_limit_error") || lower.includes("rate limited") || compact.includes("ratelimited")) {
+    return "Claude CLI usage endpoint is rate limited right now. Please try again later.";
+  }
+  if (lower.includes("failed to load usage data") || compact.includes("failedtoloadusagedata")) {
+    return "Claude CLI could not load usage data. Open the CLI and retry `/usage`.";
+  }
+  return null;
+}
+
+function percentFromLine(line: string): number | null {
+  const match = line.match(/([0-9]{1,3}(?:\.[0-9]+)?)\s*%/i);
+  if (!match) return null;
+  const rawValue = Number(match[1]);
+  if (!Number.isFinite(rawValue)) return null;
+  const clamped = Math.min(100, Math.max(0, rawValue));
+  const lower = line.toLowerCase();
+  if (lower.includes("remaining") || lower.includes("left") || lower.includes("available")) {
+    return Math.max(0, Math.min(100, Math.round(100 - clamped)));
+  }
+  return Math.round(clamped);
+}
+
+function isQuotaLabel(line: string): boolean {
+  const normalized = normalizeForLabelSearch(line);
+  return normalized === "currentsession"
+    || normalized === "currentweekallmodels"
+    || normalized === "currentweeksonnetonly"
+    || normalized === "currentweeksonnet"
+    || normalized === "currentweekopusonly"
+    || normalized === "currentweekopus"
+    || normalized === "extrausage";
+}
+
+function canonicalQuotaLabel(line: string): string {
+  switch (normalizeForLabelSearch(line)) {
+    case "currentsession":
+      return "Current session";
+    case "currentweekallmodels":
+      return "Current week (all models)";
+    case "currentweeksonnetonly":
+    case "currentweeksonnet":
+      return "Current week (Sonnet only)";
+    case "currentweekopusonly":
+    case "currentweekopus":
+      return "Current week (Opus only)";
+    case "extrausage":
+      return "Extra usage";
+    default:
+      return line;
+  }
+}
+
+function formatClaudeCliDetail(label: string, lines: string[]): string | null {
+  const normalizedLabel = normalizeForLabelSearch(label);
+  if (normalizedLabel === "extrausage") {
+    const compact = lines.join(" ").replace(/\s+/g, "").toLowerCase();
+    if (compact.includes("extrausagenotenabled")) {
+      return "Extra usage not enabled • /extra-usage to enable";
+    }
+    const firstLine = lines.find((line) => line.trim().length > 0) ?? null;
+    return firstLine;
+  }
+
+  const resetLine = lines.find((line) => /^resets/i.test(line) || normalizeForLabelSearch(line).startsWith("resets"));
+  if (!resetLine) return null;
+  return resetLine
+    .replace(/^Resets/i, "Resets ")
+    .replace(/([A-Z][a-z]{2})(\d)/g, "$1 $2")
+    .replace(/(\d)at(\d)/g, "$1 at $2")
+    .replace(/(am|pm)\(/gi, "$1 (")
+    .replace(/([A-Za-z])\(/g, "$1 (")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+
+export function parseClaudeCliUsageText(text: string): QuotaWindow[] {
+  const cleaned = trimToLatestUsagePanel(cleanTerminalText(text)) ?? cleanTerminalText(text);
+  const usageError = extractUsageError(cleaned);
+  if (usageError) throw new Error(usageError);
+
+  const lines = cleaned
+    .split("\n")
+    .map((line) => line.trim())
+    .filter((line) => line.length > 0);
+
+  const sections: Array<{ label: string; lines: string[] }> = [];
+  let current: { label: string; lines: string[] } | null = null;
+
+  for (const line of lines) {
+    if (isQuotaLabel(line)) {
+      if (current) sections.push(current);
+      current = { label: canonicalQuotaLabel(line), lines: [] };
+      continue;
+    }
+    if (current) current.lines.push(line);
+  }
+  if (current) sections.push(current);
+
+  const windows = sections.map<QuotaWindow>((section) => {
+    const usedPercent = section.lines.map(percentFromLine).find((value) => value != null) ?? null;
+    return {
+      label: section.label,
+      usedPercent,
+      resetsAt: null,
+      valueLabel: null,
+      detail: formatClaudeCliDetail(section.label, section.lines),
+    };
+  });
+
+  if (!windows.some((window) => normalizeForLabelSearch(window.label) === "currentsession")) {
+    throw new Error("Could not parse Claude CLI usage output.");
+  }
+  return windows;
+}
+
+function quoteForShell(value: string): string {
+  return `'${value.replace(/'/g, `'\\''`)}'`;
+}
+
+function buildClaudeCliShellProbeCommand(): string {
+  const feed = "(sleep 2; printf '/usage\\r'; sleep 6; printf '\\033'; sleep 1; printf '\\003')";
+  const claudeCommand = "claude --tools \"\"";
+  if (process.platform === "darwin") {
+    return `${feed} | script -q /dev/null ${claudeCommand}`;
+  }
+  return `${feed} | script -q -e -f -c ${quoteForShell(claudeCommand)} /dev/null`;
+}
+
+export async function captureClaudeCliUsageText(timeoutMs = 12_000): Promise<string> {
+  const command = buildClaudeCliShellProbeCommand();
+  try {
+    const { stdout, stderr } = await execFileAsync("sh", ["-c", command], {
+      env: createClaudeQuotaEnv(),
+      timeout: timeoutMs,
+      maxBuffer: 8 * 1024 * 1024,
+    });
+    const output = `${stdout}${stderr}`;
+    const cleaned = cleanTerminalText(output);
+    if (usageOutputLooksComplete(cleaned)) return output;
+    throw new Error("Claude CLI usage probe ended before rendering usage.");
+  } catch (error) {
+    const stdout =
+      typeof error === "object" && error !== null && "stdout" in error && typeof error.stdout === "string"
+        ? error.stdout
+        : "";
+    const stderr =
+      typeof error === "object" && error !== null && "stderr" in error && typeof error.stderr === "string"
+        ? error.stderr
+        : "";
+    const output = `${stdout}${stderr}`;
+    const cleaned = cleanTerminalText(output);
+    if (usageOutputLooksComplete(cleaned)) return output;
+    if (usageOutputLooksRelevant(cleaned)) {
+      throw new Error("Claude CLI usage probe ended before rendering usage.");
+    }
+    throw error instanceof Error ? error : new Error(String(error));
+  }
+}
+
+export async function fetchClaudeCliQuota(): Promise<QuotaWindow[]> {
+  const rawText = await captureClaudeCliUsageText();
+  return parseClaudeCliUsageText(rawText);
+}
+
+function formatProviderError(source: string, error: unknown): string {
+  const message = error instanceof Error ? error.message : String(error);
+  return `${source}: ${message}`;
+}
+
+export async function getQuotaWindows(): Promise<ProviderQuotaResult> {
+  const authStatus = await readClaudeAuthStatus();
+  const authDescription = describeClaudeSubscriptionAuth(authStatus);
+  const token = await readClaudeToken();
+
+  const errors: string[] = [];
+
+  if (token) {
+    try {
+      const windows = await fetchClaudeQuota(token);
+      return { provider: "anthropic", source: CLAUDE_USAGE_SOURCE_OAUTH, ok: true, windows };
+    } catch (error) {
+      errors.push(formatProviderError("Anthropic OAuth usage", error));
+    }
+  }
+
+  try {
+    const windows = await fetchClaudeCliQuota();
+    return { provider: "anthropic", source: CLAUDE_USAGE_SOURCE_CLI, ok: true, windows };
+  } catch (error) {
+    errors.push(formatProviderError("Claude CLI /usage", error));
+  }
+
+  if (hasNonEmptyProcessEnv("ANTHROPIC_API_KEY") && !authDescription) {
+    return {
+      provider: "anthropic",
+      ok: false,
+      error:
+        errors[0]
+        ?? "ANTHROPIC_API_KEY is set and no local Claude subscription session is available for quota polling",
+      windows: [],
+    };
+  }
+
+  if (authDescription) {
+    return {
+      provider: "anthropic",
+      ok: false,
+      error:
+        errors.length > 0
+          ? `${authDescription}, but quota polling failed (${errors.join("; ")})`
+          : `${authDescription}, but Paperclip could not load subscription quota data`,
+      windows: [],
+    };
+  }
+
+  return {
+    provider: "anthropic",
+    ok: false,
+    error: errors[0] ?? "no local claude auth token",
+    windows: [],
+  };
 }

packages/adapters/codex-local/package.json

@@ -38,7 +38,8 @@
   "scripts": {
     "build": "tsc",
     "clean": "rm -rf dist",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "probe:quota": "pnpm exec tsx src/cli/quota-probe.ts --json"
   },
   "dependencies": {
     "@paperclipai/adapter-utils": "workspace:*",

packages/adapters/codex-local/src/cli/quota-probe.ts

@@ -0,0 +1,112 @@
+#!/usr/bin/env node
+
+import {
+  fetchCodexQuota,
+  fetchCodexRpcQuota,
+  getQuotaWindows,
+  readCodexAuthInfo,
+  readCodexToken,
+} from "../server/quota.js";
+
+interface ProbeArgs {
+  json: boolean;
+  rpcOnly: boolean;
+  whamOnly: boolean;
+}
+
+function parseArgs(argv: string[]): ProbeArgs {
+  return {
+    json: argv.includes("--json"),
+    rpcOnly: argv.includes("--rpc-only"),
+    whamOnly: argv.includes("--wham-only"),
+  };
+}
+
+function stringifyError(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}
+
+async function main() {
+  const args = parseArgs(process.argv.slice(2));
+  if (args.rpcOnly && args.whamOnly) {
+    throw new Error("Choose either --rpc-only or --wham-only, not both.");
+  }
+
+  const auth = await readCodexAuthInfo();
+  const token = await readCodexToken();
+
+  const result: Record<string, unknown> = {
+    timestamp: new Date().toISOString(),
+    auth,
+    tokenAvailable: token != null,
+  };
+
+  if (!args.whamOnly) {
+    try {
+      result.rpc = {
+        ok: true,
+        ...(await fetchCodexRpcQuota()),
+      };
+    } catch (error) {
+      result.rpc = {
+        ok: false,
+        error: stringifyError(error),
+        windows: [],
+      };
+    }
+  }
+
+  if (!args.rpcOnly) {
+    if (!token) {
+      result.wham = {
+        ok: false,
+        error: "No local Codex auth token found in ~/.codex/auth.json.",
+        windows: [],
+      };
+    } else {
+      try {
+        result.wham = {
+          ok: true,
+          windows: await fetchCodexQuota(token.token, token.accountId),
+        };
+      } catch (error) {
+        result.wham = {
+          ok: false,
+          error: stringifyError(error),
+          windows: [],
+        };
+      }
+    }
+  }
+
+  if (!args.rpcOnly && !args.whamOnly) {
+    try {
+      result.aggregated = await getQuotaWindows();
+    } catch (error) {
+      result.aggregated = {
+        ok: false,
+        error: stringifyError(error),
+      };
+    }
+  }
+
+  const rpcOk = (result.rpc as { ok?: boolean } | undefined)?.ok === true;
+  const whamOk = (result.wham as { ok?: boolean } | undefined)?.ok === true;
+  const aggregatedOk = (result.aggregated as { ok?: boolean } | undefined)?.ok === true;
+  const ok = rpcOk || whamOk || aggregatedOk;
+
+  if (args.json || process.stdout.isTTY === false) {
+    console.log(JSON.stringify({ ok, ...result }, null, 2));
+  } else {
+    console.log(`timestamp: ${result.timestamp}`);
+    console.log(`auth: ${JSON.stringify(auth)}`);
+    console.log(`tokenAvailable: ${token != null}`);
+    if (result.rpc) console.log(`rpc: ${JSON.stringify(result.rpc, null, 2)}`);
+    if (result.wham) console.log(`wham: ${JSON.stringify(result.wham, null, 2)}`);
+    if (result.aggregated) console.log(`aggregated: ${JSON.stringify(result.aggregated, null, 2)}`);
+  }
+
+  if (!ok) process.exitCode = 1;
+}
+
+await main();

packages/adapters/codex-local/src/server/execute.ts

@@ -1,7 +1,7 @@
 import fs from "node:fs/promises";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
-import type { AdapterExecutionContext, AdapterExecutionResult } from "@paperclipai/adapter-utils";
+import { inferOpenAiCompatibleBiller, type AdapterExecutionContext, type AdapterExecutionResult } from "@paperclipai/adapter-utils";
 import {
   asString,
   asNumber,
@@ -61,6 +61,12 @@ function resolveCodexBillingType(env: Record<string, string>): "api" | "subscrip
   return hasNonEmptyEnvValue(env, "OPENAI_API_KEY") ? "api" : "subscription";
 }
 
+function resolveCodexBiller(env: Record<string, string>, billingType: "api" | "subscription"): string {
+  const openAiCompatibleBiller = inferOpenAiCompatibleBiller(env, "openai");
+  if (openAiCompatibleBiller === "openrouter") return "openrouter";
+  return billingType === "subscription" ? "chatgpt" : openAiCompatibleBiller ?? "openai";
+}
+
 async function isLikelyPaperclipRepoRoot(candidate: string): Promise<boolean> {
   const [hasWorkspace, hasPackageJson, hasServerDir, hasAdapterUtilsDir] = await Promise.all([
     pathExists(path.join(candidate, "pnpm-workspace.yaml")),
@@ -315,8 +321,13 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
   if (!hasExplicitApiKey && authToken) {
     env.PAPERCLIP_API_KEY = authToken;
   }
-  const billingType = resolveCodexBillingType(env);
-  const runtimeEnv = ensurePathInEnv({ ...process.env, ...env });
+  const effectiveEnv = Object.fromEntries(
+    Object.entries({ ...process.env, ...env }).filter(
+      (entry): entry is [string, string] => typeof entry[1] === "string",
+    ),
+  );
+  const billingType = resolveCodexBillingType(effectiveEnv);
+  const runtimeEnv = ensurePathInEnv(effectiveEnv);
   await ensureCommandResolvable(command, cwd, runtimeEnv);
 
   const timeoutSec = asNumber(config.timeoutSec, 0);
@@ -508,6 +519,7 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
       sessionParams: resolvedSessionParams,
       sessionDisplayId: resolvedSessionId,
       provider: "openai",
+      biller: resolveCodexBiller(effectiveEnv, billingType),
       model,
       billingType,
       costUsd: null,

packages/adapters/codex-local/src/server/index.ts

@@ -3,8 +3,11 @@ export { testEnvironment } from "./test.js";
 export { parseCodexJsonl, isCodexUnknownSessionError } from "./parse.js";
 export {
   getQuotaWindows,
+  readCodexAuthInfo,
   readCodexToken,
   fetchCodexQuota,
+  fetchCodexRpcQuota,
+  mapCodexRpcQuota,
   secondsToWindowLabel,
   fetchWithTimeout,
   codexHomeDir,

packages/adapters/codex-local/src/server/quota.ts

@@ -1,20 +1,113 @@
+import { spawn } from "node:child_process";
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import type { ProviderQuotaResult, QuotaWindow } from "@paperclipai/adapter-utils";
 
+const CODEX_USAGE_SOURCE_RPC = "codex-rpc";
+const CODEX_USAGE_SOURCE_WHAM = "codex-wham";
+
 export function codexHomeDir(): string {
   const fromEnv = process.env.CODEX_HOME;
   if (typeof fromEnv === "string" && fromEnv.trim().length > 0) return fromEnv.trim();
   return path.join(os.homedir(), ".codex");
 }
 
-interface CodexAuthFile {
+interface CodexLegacyAuthFile {
   accessToken?: string | null;
   accountId?: string | null;
 }
 
-export async function readCodexToken(): Promise<{ token: string; accountId: string | null } | null> {
+interface CodexTokenBlock {
+  id_token?: string | null;
+  access_token?: string | null;
+  refresh_token?: string | null;
+  account_id?: string | null;
+}
+
+interface CodexModernAuthFile {
+  OPENAI_API_KEY?: string | null;
+  tokens?: CodexTokenBlock | null;
+  last_refresh?: string | null;
+}
+
+export interface CodexAuthInfo {
+  accessToken: string;
+  accountId: string | null;
+  refreshToken: string | null;
+  idToken: string | null;
+  email: string | null;
+  planType: string | null;
+  lastRefresh: string | null;
+}
+
+function base64UrlDecode(input: string): string | null {
+  try {
+    let normalized = input.replace(/-/g, "+").replace(/_/g, "/");
+    const remainder = normalized.length % 4;
+    if (remainder > 0) normalized += "=".repeat(4 - remainder);
+    return Buffer.from(normalized, "base64").toString("utf8");
+  } catch {
+    return null;
+  }
+}
+
+function decodeJwtPayload(token: string | null | undefined): Record<string, unknown> | null {
+  if (typeof token !== "string" || token.trim().length === 0) return null;
+  const parts = token.split(".");
+  if (parts.length < 2) return null;
+  const decoded = base64UrlDecode(parts[1] ?? "");
+  if (!decoded) return null;
+  try {
+    const parsed = JSON.parse(decoded) as unknown;
+    return typeof parsed === "object" && parsed !== null ? parsed as Record<string, unknown> : null;
+  } catch {
+    return null;
+  }
+}
+
+function readNestedString(record: Record<string, unknown>, pathSegments: string[]): string | null {
+  let current: unknown = record;
+  for (const segment of pathSegments) {
+    if (typeof current !== "object" || current === null || Array.isArray(current)) return null;
+    current = (current as Record<string, unknown>)[segment];
+  }
+  return typeof current === "string" && current.trim().length > 0 ? current.trim() : null;
+}
+
+function parsePlanAndEmailFromToken(idToken: string | null, accessToken: string | null): {
+  email: string | null;
+  planType: string | null;
+} {
+  const payloads = [decodeJwtPayload(idToken), decodeJwtPayload(accessToken)].filter(
+    (value): value is Record<string, unknown> => value != null,
+  );
+  for (const payload of payloads) {
+    const directEmail = typeof payload.email === "string" ? payload.email : null;
+    const authBlock =
+      typeof payload["https://api.openai.com/auth"] === "object" &&
+      payload["https://api.openai.com/auth"] !== null &&
+      !Array.isArray(payload["https://api.openai.com/auth"])
+        ? payload["https://api.openai.com/auth"] as Record<string, unknown>
+        : null;
+    const profileBlock =
+      typeof payload["https://api.openai.com/profile"] === "object" &&
+      payload["https://api.openai.com/profile"] !== null &&
+      !Array.isArray(payload["https://api.openai.com/profile"])
+        ? payload["https://api.openai.com/profile"] as Record<string, unknown>
+        : null;
+    const email =
+      directEmail
+      ?? (typeof profileBlock?.email === "string" ? profileBlock.email : null)
+      ?? (typeof authBlock?.chatgpt_user_email === "string" ? authBlock.chatgpt_user_email : null);
+    const planType =
+      typeof authBlock?.chatgpt_plan_type === "string" ? authBlock.chatgpt_plan_type : null;
+    if (email || planType) return { email: email ?? null, planType };
+  }
+  return { email: null, planType: null };
+}
+
+export async function readCodexAuthInfo(): Promise<CodexAuthInfo | null> {
   const authPath = path.join(codexHomeDir(), "auth.json");
   let raw: string;
   try {
@@ -29,18 +122,55 @@ export async function readCodexToken(): Promise<{ token: string; accountId: stri
     return null;
   }
   if (typeof parsed !== "object" || parsed === null) return null;
-  const obj = parsed as CodexAuthFile;
-  const token = obj.accessToken;
-  if (typeof token !== "string" || token.length === 0) return null;
+  const obj = parsed as Record<string, unknown>;
+  const modern = obj as CodexModernAuthFile;
+  const legacy = obj as CodexLegacyAuthFile;
+
+  const accessToken =
+    legacy.accessToken
+    ?? modern.tokens?.access_token
+    ?? readNestedString(obj, ["tokens", "access_token"]);
+  if (typeof accessToken !== "string" || accessToken.length === 0) return null;
+
   const accountId =
-    typeof obj.accountId === "string" && obj.accountId.length > 0 ? obj.accountId : null;
-  return { token, accountId };
+    legacy.accountId
+    ?? modern.tokens?.account_id
+    ?? readNestedString(obj, ["tokens", "account_id"]);
+  const refreshToken =
+    modern.tokens?.refresh_token
+    ?? readNestedString(obj, ["tokens", "refresh_token"]);
+  const idToken =
+    modern.tokens?.id_token
+    ?? readNestedString(obj, ["tokens", "id_token"]);
+  const { email, planType } = parsePlanAndEmailFromToken(idToken, accessToken);
+
+  return {
+    accessToken,
+    accountId:
+      typeof accountId === "string" && accountId.trim().length > 0 ? accountId.trim() : null,
+    refreshToken:
+      typeof refreshToken === "string" && refreshToken.trim().length > 0 ? refreshToken.trim() : null,
+    idToken:
+      typeof idToken === "string" && idToken.trim().length > 0 ? idToken.trim() : null,
+    email,
+    planType,
+    lastRefresh:
+      typeof modern.last_refresh === "string" && modern.last_refresh.trim().length > 0
+        ? modern.last_refresh.trim()
+        : null,
+  };
+}
+
+export async function readCodexToken(): Promise<{ token: string; accountId: string | null } | null> {
+  const auth = await readCodexAuthInfo();
+  if (!auth) return null;
+  return { token: auth.accessToken, accountId: auth.accountId };
 }
 
 interface WhamWindow {
   used_percent?: number | null;
   limit_window_seconds?: number | null;
-  reset_at?: string | null;
+  reset_at?: string | number | null;
 }
 
 interface WhamCredits {
@@ -49,6 +179,7 @@ interface WhamCredits {
 }
 
 interface WhamUsageResponse {
+  plan_type?: string | null;
   rate_limit?: {
     primary_window?: WhamWindow | null;
     secondary_window?: WhamWindow | null;
@@ -69,7 +200,6 @@ export function secondsToWindowLabel(
   if (hours < 6) return "5h";
   if (hours <= 24) return "24h";
   if (hours <= 168) return "7d";
-  // for windows larger than 7d, show the actual day count rather than silently mislabelling
   return `${Math.round(hours / 24)}d`;
 }
 
@@ -88,6 +218,11 @@ export async function fetchWithTimeout(
   }
 }
 
+function normalizeCodexUsedPercent(rawPct: number | null | undefined): number | null {
+  if (rawPct == null) return null;
+  return Math.min(100, Math.round(rawPct < 1 ? rawPct * 100 : rawPct));
+}
+
 export async function fetchCodexQuota(
   token: string,
   accountId: string | null,
@@ -105,30 +240,28 @@ export async function fetchCodexQuota(
   const rateLimit = body.rate_limit;
   if (rateLimit?.primary_window != null) {
     const w = rateLimit.primary_window;
-    // wham used_percent is 0-100 (confirmed empirically); guard against 0-1 format just in case.
-    // use < 1 (not <= 1) so that 1% usage (rawPct=1) is not misclassified as 100%.
-    const rawPct = w.used_percent ?? null;
-    const usedPercent =
-      rawPct != null ? Math.min(100, Math.round(rawPct < 1 ? rawPct * 100 : rawPct)) : null;
     windows.push({
-      label: secondsToWindowLabel(w.limit_window_seconds, "Primary"),
-      usedPercent,
-      resetsAt: w.reset_at ?? null,
+      label: "5h limit",
+      usedPercent: normalizeCodexUsedPercent(w.used_percent),
+      resetsAt:
+        typeof w.reset_at === "number"
+          ? unixSecondsToIso(w.reset_at)
+          : (w.reset_at ?? null),
       valueLabel: null,
+      detail: null,
     });
   }
   if (rateLimit?.secondary_window != null) {
     const w = rateLimit.secondary_window;
-    // wham used_percent is 0-100 (confirmed empirically); guard against 0-1 format just in case.
-    // use < 1 (not <= 1) so that 1% usage (rawPct=1) is not misclassified as 100%.
-    const rawPct = w.used_percent ?? null;
-    const usedPercent =
-      rawPct != null ? Math.min(100, Math.round(rawPct < 1 ? rawPct * 100 : rawPct)) : null;
     windows.push({
-      label: secondsToWindowLabel(w.limit_window_seconds, "Secondary"),
-      usedPercent,
-      resetsAt: w.reset_at ?? null,
+      label: "Weekly limit",
+      usedPercent: normalizeCodexUsedPercent(w.used_percent),
+      resetsAt:
+        typeof w.reset_at === "number"
+          ? unixSecondsToIso(w.reset_at)
+          : (w.reset_at ?? null),
       valueLabel: null,
+      detail: null,
     });
   }
   if (body.credits != null && body.credits.unlimited !== true) {
@@ -139,16 +272,285 @@ export async function fetchCodexQuota(
       usedPercent: null,
       resetsAt: null,
       valueLabel,
+      detail: null,
     });
   }
   return windows;
 }
 
-export async function getQuotaWindows(): Promise<ProviderQuotaResult> {
-  const auth = await readCodexToken();
-  if (!auth) {
-    return { provider: "openai", ok: false, error: "no local codex auth token", windows: [] };
-  }
-  const windows = await fetchCodexQuota(auth.token, auth.accountId);
-  return { provider: "openai", ok: true, windows };
+interface CodexRpcWindow {
+  usedPercent?: number | null;
+  windowDurationMins?: number | null;
+  resetsAt?: number | null;
+}
+
+interface CodexRpcCredits {
+  hasCredits?: boolean | null;
+  unlimited?: boolean | null;
+  balance?: string | number | null;
+}
+
+interface CodexRpcLimit {
+  limitId?: string | null;
+  limitName?: string | null;
+  primary?: CodexRpcWindow | null;
+  secondary?: CodexRpcWindow | null;
+  credits?: CodexRpcCredits | null;
+  planType?: string | null;
+}
+
+interface CodexRpcRateLimitsResult {
+  rateLimits?: CodexRpcLimit | null;
+  rateLimitsByLimitId?: Record<string, CodexRpcLimit> | null;
+}
+
+interface CodexRpcAccountResult {
+  account?: {
+    type?: string | null;
+    email?: string | null;
+    planType?: string | null;
+  } | null;
+  requiresOpenaiAuth?: boolean | null;
+}
+
+export interface CodexRpcQuotaSnapshot {
+  windows: QuotaWindow[];
+  email: string | null;
+  planType: string | null;
+}
+
+function unixSecondsToIso(value: number | null | undefined): string | null {
+  if (typeof value !== "number" || !Number.isFinite(value)) return null;
+  return new Date(value * 1000).toISOString();
+}
+
+function buildCodexRpcWindow(label: string, window: CodexRpcWindow | null | undefined): QuotaWindow | null {
+  if (!window) return null;
+  return {
+    label,
+    usedPercent: normalizeCodexUsedPercent(window.usedPercent),
+    resetsAt: unixSecondsToIso(window.resetsAt),
+    valueLabel: null,
+    detail: null,
+  };
+}
+
+function parseCreditBalance(value: string | number | null | undefined): string | null {
+  if (typeof value === "number" && Number.isFinite(value)) {
+    return `$${value.toFixed(2)} remaining`;
+  }
+  if (typeof value === "string" && value.trim().length > 0) {
+    const parsed = Number(value);
+    if (Number.isFinite(parsed)) {
+      return `$${parsed.toFixed(2)} remaining`;
+    }
+    return value.trim();
+  }
+  return null;
+}
+
+export function mapCodexRpcQuota(result: CodexRpcRateLimitsResult, account?: CodexRpcAccountResult | null): CodexRpcQuotaSnapshot {
+  const windows: QuotaWindow[] = [];
+  const limitOrder = ["codex"];
+  const limitsById = result.rateLimitsByLimitId ?? {};
+  for (const key of Object.keys(limitsById)) {
+    if (!limitOrder.includes(key)) limitOrder.push(key);
+  }
+
+  const rootLimit = result.rateLimits ?? null;
+  const allLimits = new Map<string, CodexRpcLimit>();
+  if (rootLimit?.limitId) allLimits.set(rootLimit.limitId, rootLimit);
+  for (const [key, value] of Object.entries(limitsById)) {
+    allLimits.set(key, value);
+  }
+  if (!allLimits.has("codex") && rootLimit) allLimits.set("codex", rootLimit);
+
+  for (const limitId of limitOrder) {
+    const limit = allLimits.get(limitId);
+    if (!limit) continue;
+    const prefix =
+      limitId === "codex"
+        ? ""
+        : `${limit.limitName ?? limitId} · `;
+    const primary = buildCodexRpcWindow(`${prefix}5h limit`, limit.primary);
+    if (primary) windows.push(primary);
+    const secondary = buildCodexRpcWindow(`${prefix}Weekly limit`, limit.secondary);
+    if (secondary) windows.push(secondary);
+    if (limitId === "codex" && limit.credits && limit.credits.unlimited !== true) {
+      windows.push({
+        label: "Credits",
+        usedPercent: null,
+        resetsAt: null,
+        valueLabel: parseCreditBalance(limit.credits.balance) ?? "N/A",
+        detail: null,
+      });
+    }
+  }
+
+  return {
+    windows,
+    email:
+      typeof account?.account?.email === "string" && account.account.email.trim().length > 0
+        ? account.account.email.trim()
+        : null,
+    planType:
+      typeof account?.account?.planType === "string" && account.account.planType.trim().length > 0
+        ? account.account.planType.trim()
+        : (typeof rootLimit?.planType === "string" && rootLimit.planType.trim().length > 0 ? rootLimit.planType.trim() : null),
+  };
+}
+
+type PendingRequest = {
+  resolve: (value: Record<string, unknown>) => void;
+  reject: (error: Error) => void;
+  timer: NodeJS.Timeout;
+};
+
+class CodexRpcClient {
+  private proc = spawn(
+    "codex",
+    ["-s", "read-only", "-a", "untrusted", "app-server"],
+    { stdio: ["pipe", "pipe", "pipe"], env: process.env },
+  );
+
+  private nextId = 1;
+  private buffer = "";
+  private pending = new Map<number, PendingRequest>();
+  private stderr = "";
+
+  constructor() {
+    this.proc.stdout.setEncoding("utf8");
+    this.proc.stderr.setEncoding("utf8");
+    this.proc.stdout.on("data", (chunk: string) => this.onStdout(chunk));
+    this.proc.stderr.on("data", (chunk: string) => {
+      this.stderr += chunk;
+    });
+    this.proc.on("exit", () => {
+      for (const request of this.pending.values()) {
+        clearTimeout(request.timer);
+        request.reject(new Error(this.stderr.trim() || "codex app-server closed unexpectedly"));
+      }
+      this.pending.clear();
+    });
+  }
+
+  private onStdout(chunk: string) {
+    this.buffer += chunk;
+    while (true) {
+      const newlineIndex = this.buffer.indexOf("\n");
+      if (newlineIndex < 0) break;
+      const line = this.buffer.slice(0, newlineIndex).trim();
+      this.buffer = this.buffer.slice(newlineIndex + 1);
+      if (!line) continue;
+      let parsed: Record<string, unknown>;
+      try {
+        parsed = JSON.parse(line) as Record<string, unknown>;
+      } catch {
+        continue;
+      }
+      const id = typeof parsed.id === "number" ? parsed.id : null;
+      if (id == null) continue;
+      const pending = this.pending.get(id);
+      if (!pending) continue;
+      this.pending.delete(id);
+      clearTimeout(pending.timer);
+      pending.resolve(parsed);
+    }
+  }
+
+  private request(method: string, params: Record<string, unknown> = {}, timeoutMs = 6_000): Promise<Record<string, unknown>> {
+    const id = this.nextId++;
+    const payload = JSON.stringify({ id, method, params }) + "\n";
+    return new Promise<Record<string, unknown>>((resolve, reject) => {
+      const timer = setTimeout(() => {
+        this.pending.delete(id);
+        reject(new Error(`codex app-server timed out on ${method}`));
+      }, timeoutMs);
+      this.pending.set(id, { resolve, reject, timer });
+      this.proc.stdin.write(payload);
+    });
+  }
+
+  private notify(method: string, params: Record<string, unknown> = {}) {
+    this.proc.stdin.write(JSON.stringify({ method, params }) + "\n");
+  }
+
+  async initialize() {
+    await this.request("initialize", {
+      clientInfo: {
+        name: "paperclip",
+        version: "0.0.0",
+      },
+    });
+    this.notify("initialized", {});
+  }
+
+  async fetchRateLimits(): Promise<CodexRpcRateLimitsResult> {
+    const message = await this.request("account/rateLimits/read");
+    return (message.result as CodexRpcRateLimitsResult | undefined) ?? {};
+  }
+
+  async fetchAccount(): Promise<CodexRpcAccountResult | null> {
+    try {
+      const message = await this.request("account/read");
+      return (message.result as CodexRpcAccountResult | undefined) ?? null;
+    } catch {
+      return null;
+    }
+  }
+
+  async shutdown() {
+    this.proc.kill("SIGTERM");
+  }
+}
+
+export async function fetchCodexRpcQuota(): Promise<CodexRpcQuotaSnapshot> {
+  const client = new CodexRpcClient();
+  try {
+    await client.initialize();
+    const [limits, account] = await Promise.all([
+      client.fetchRateLimits(),
+      client.fetchAccount(),
+    ]);
+    return mapCodexRpcQuota(limits, account);
+  } finally {
+    await client.shutdown();
+  }
+}
+
+function formatProviderError(source: string, error: unknown): string {
+  const message = error instanceof Error ? error.message : String(error);
+  return `${source}: ${message}`;
+}
+
+export async function getQuotaWindows(): Promise<ProviderQuotaResult> {
+  const errors: string[] = [];
+
+  try {
+    const rpc = await fetchCodexRpcQuota();
+    if (rpc.windows.length > 0) {
+      return { provider: "openai", source: CODEX_USAGE_SOURCE_RPC, ok: true, windows: rpc.windows };
+    }
+  } catch (error) {
+    errors.push(formatProviderError("Codex app-server", error));
+  }
+
+  const auth = await readCodexToken();
+  if (auth) {
+    try {
+      const windows = await fetchCodexQuota(auth.token, auth.accountId);
+      return { provider: "openai", source: CODEX_USAGE_SOURCE_WHAM, ok: true, windows };
+    } catch (error) {
+      errors.push(formatProviderError("ChatGPT WHAM usage", error));
+    }
+  } else {
+    errors.push("no local codex auth token");
+  }
+
+  return {
+    provider: "openai",
+    ok: false,
+    error: errors.join("; "),
+    windows: [],
+  };
 }

packages/adapters/cursor-local/src/server/execute.ts

@@ -2,7 +2,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
-import type { AdapterExecutionContext, AdapterExecutionResult } from "@paperclipai/adapter-utils";
+import { inferOpenAiCompatibleBiller, type AdapterExecutionContext, type AdapterExecutionResult } from "@paperclipai/adapter-utils";
 import {
   asString,
   asNumber,
@@ -47,6 +47,17 @@ function resolveCursorBillingType(env: Record<string, string>): "api" | "subscri
     : "subscription";
 }
 
+function resolveCursorBiller(
+  env: Record<string, string>,
+  billingType: "api" | "subscription",
+  provider: string | null,
+): string {
+  const openAiCompatibleBiller = inferOpenAiCompatibleBiller(env, null);
+  if (openAiCompatibleBiller === "openrouter") return "openrouter";
+  if (billingType === "subscription") return "cursor";
+  return provider ?? "cursor";
+}
+
 function resolveProviderFromModel(model: string): string | null {
   const trimmed = model.trim().toLowerCase();
   if (!trimmed) return null;
@@ -243,8 +254,13 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
   if (!hasExplicitApiKey && authToken) {
     env.PAPERCLIP_API_KEY = authToken;
   }
-  const billingType = resolveCursorBillingType(env);
-  const runtimeEnv = ensurePathInEnv({ ...process.env, ...env });
+  const effectiveEnv = Object.fromEntries(
+    Object.entries({ ...process.env, ...env }).filter(
+      (entry): entry is [string, string] => typeof entry[1] === "string",
+    ),
+  );
+  const billingType = resolveCursorBillingType(effectiveEnv);
+  const runtimeEnv = ensurePathInEnv(effectiveEnv);
   await ensureCommandResolvable(command, cwd, runtimeEnv);
 
   const timeoutSec = asNumber(config.timeoutSec, 0);
@@ -474,6 +490,7 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
       sessionParams: resolvedSessionParams,
       sessionDisplayId: resolvedSessionId,
       provider: providerFromModel,
+      biller: resolveCursorBiller(effectiveEnv, billingType, providerFromModel),
       model,
       billingType,
       costUsd: attempt.parsed.costUsd,

packages/adapters/gemini-local/src/server/execute.ts

@@ -206,8 +206,13 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
   if (!hasExplicitApiKey && authToken) {
     env.PAPERCLIP_API_KEY = authToken;
   }
-  const billingType = resolveGeminiBillingType(env);
-  const runtimeEnv = ensurePathInEnv({ ...process.env, ...env });
+  const effectiveEnv = Object.fromEntries(
+    Object.entries({ ...process.env, ...env }).filter(
+      (entry): entry is [string, string] => typeof entry[1] === "string",
+    ),
+  );
+  const billingType = resolveGeminiBillingType(effectiveEnv);
+  const runtimeEnv = ensurePathInEnv(effectiveEnv);
   await ensureCommandResolvable(command, cwd, runtimeEnv);
 
   const timeoutSec = asNumber(config.timeoutSec, 0);
@@ -420,6 +425,7 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
       sessionParams: resolvedSessionParams,
       sessionDisplayId: resolvedSessionId,
       provider: "google",
+      biller: "google",
       model,
       billingType,
       costUsd: attempt.parsed.costUsd,

packages/adapters/opencode-local/src/server/execute.ts

@@ -2,7 +2,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
-import type { AdapterExecutionContext, AdapterExecutionResult } from "@paperclipai/adapter-utils";
+import { inferOpenAiCompatibleBiller, type AdapterExecutionContext, type AdapterExecutionResult } from "@paperclipai/adapter-utils";
 import {
   asString,
   asNumber,
@@ -42,6 +42,10 @@ function parseModelProvider(model: string | null): string | null {
   return trimmed.slice(0, trimmed.indexOf("/")).trim() || null;
 }
 
+function resolveOpenCodeBiller(env: Record<string, string>, provider: string | null): string {
+  return inferOpenAiCompatibleBiller(env, null) ?? provider ?? "unknown";
+}
+
 function claudeSkillsHome(): string {
   return path.join(os.homedir(), ".claude", "skills");
 }
@@ -361,6 +365,7 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
       sessionParams: resolvedSessionParams,
       sessionDisplayId: resolvedSessionId,
       provider: parseModelProvider(modelId),
+      biller: resolveOpenCodeBiller(runtimeEnv, parseModelProvider(modelId)),
       model: modelId,
       billingType: "unknown",
       costUsd: attempt.parsed.costUsd,

packages/adapters/pi-local/src/server/execute.ts

@@ -2,7 +2,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
-import type { AdapterExecutionContext, AdapterExecutionResult } from "@paperclipai/adapter-utils";
+import { inferOpenAiCompatibleBiller, type AdapterExecutionContext, type AdapterExecutionResult } from "@paperclipai/adapter-utils";
 import {
   asString,
   asNumber,
@@ -50,6 +50,10 @@ function parseModelId(model: string | null): string | null {
   return trimmed.slice(trimmed.indexOf("/") + 1).trim() || null;
 }
 
+function resolvePiBiller(env: Record<string, string>, provider: string | null): string {
+  return inferOpenAiCompatibleBiller(env, null) ?? provider ?? "unknown";
+}
+
 async function ensurePiSkillsInjected(onLog: AdapterExecutionContext["onLog"]) {
   const skillsEntries = await listPaperclipSkillEntries(__moduleDir);
   if (skillsEntries.length === 0) return;
@@ -447,6 +451,7 @@ export async function execute(ctx: AdapterExecutionContext): Promise<AdapterExec
       sessionParams: resolvedSessionParams,
       sessionDisplayId: resolvedSessionId,
       provider: provider,
+      biller: resolvePiBiller(runtimeEnv, provider),
       model: model,
       billingType: "unknown",
       costUsd: attempt.parsed.usage.costUsd,