Function computeEnvInfo

src/constants/prompts.ts:606–649

(
  modelId: string,
  additionalWorkingDirectories?: string[],
)

}

export async function computeEnvInfo(
  modelId: string,
  additionalWorkingDirectories?: string[],
): Promise<string> {
  const [isGit, unameSR] = await Promise.all([getIsGit(), getUnameSR()])

  // Undercover: keep ALL model names/IDs out of the system prompt so nothing
  // internal can leak into public commits/PRs. This includes the public
  // FRONTIER_MODEL_* constants — if those ever point at an unannounced model,
  // we don't want them in context. Go fully dark.
  //
  // DCE: `process.env.USER_TYPE === 'ant'` is build-time --define. It MUST be
  // inlined at each callsite (not hoisted to a const) so the bundler can
  // constant-fold it to `false` in external builds and eliminate the branch.
  let modelDescription = ''
  if (process.env.USER_TYPE === 'ant' && isUndercover()) {
    // suppress
  } else {
    const marketingName = getMarketingNameForModel(modelId)
    modelDescription = marketingName
      ? `You are powered by the model named ${marketingName}. The exact model ID is ${modelId}.`
      : `You are powered by the model ${modelId}.`
  }

  const additionalDirsInfo =
    additionalWorkingDirectories && additionalWorkingDirectories.length > 0
      ? `Additional working directories: ${additionalWorkingDirectories.join(', ')}\n`
      : ''

  const cutoff = getKnowledgeCutoff(modelId)
  const knowledgeCutoffMessage = cutoff
    ? `\n\nAssistant knowledge cutoff is ${cutoff}.`
    : ''

  return `Here is useful information about the environment you are running in:
<env>
Working directory: ${getCwd()}
Is directory a git repo: ${isGit ? 'Yes' : 'No'}
${additionalDirsInfo}Platform: ${env.platform}
${getShellInfoLine()}
OS Version: ${unameSR}
</env>
${modelDescription}${knowledgeCutoffMessage}`
}

export async function computeSimpleEnvInfo(
  modelId: string,