Function buildSearchingPastContextSection

src/memdir/memdir.ts:375–407

(autoMemDir: string)

 * Build the "Searching past context" section if the feature gate is enabled.
 */
export function buildSearchingPastContextSection(autoMemDir: string): string[] {
  if (!getFeatureValue_CACHED_MAY_BE_STALE('tengu_coral_fern', false)) {
    return []
  }
  const projectDir = getProjectDir(getOriginalCwd())
  // Ant-native builds alias grep to embedded ugrep and remove the dedicated
  // Grep tool, so give the model a real shell invocation there.
  // In REPL mode, both Grep and Bash are hidden from direct use — the model
  // calls them from inside REPL scripts, so the grep shell form is what it
  // will write in the script anyway.
  const embedded = hasEmbeddedSearchTools() || isReplModeEnabled()
  const memSearch = embedded
    ? `grep -rn "<search term>" ${autoMemDir} --include="*.md"`
    : `${GREP_TOOL_NAME} with pattern="<search term>" path="${autoMemDir}" glob="*.md"`
  const transcriptSearch = embedded
    ? `grep -rn "<search term>" ${projectDir}/ --include="*.jsonl"`
    : `${GREP_TOOL_NAME} with pattern="<search term>" path="${projectDir}/" glob="*.jsonl"`
  return [
    '## Searching past context',
    '',
    'When looking for past context:',
    '1. Search topic files in your memory directory:',
    '```',
    memSearch,
    '```',
    '2. Session transcript logs (last resort — large files, slow):',
    '```',
    transcriptSearch,
    '```',
    'Use narrow search terms (error messages, file paths, function names) rather than broad keywords.',
    '',
  ]
}

/**
 * Load the unified memory prompt for inclusion in the system prompt.