export declare function isReservedEnvName(name: string): boolean;
/** Every stored variable NAME for a profile, sorted. Never returns values. */
export declare function listProfileEnvNames(profileId: string): string[];
/** Set one variable, replacing any prior value under the same name. Holds the
 *  same per-profile lock manifest mutations use (`withProfileManifestLock`),
 *  so a concurrent `profile delete` can never race a write into an
 *  about-to-vanish profile dir — whichever runs first wins the lock, and the
 *  loser either sees `not_found` (delete-then-set) or removes the file right
 *  back out from under a just-written value (set-then-delete, via
 *  `deleteProfile`'s recursive rm of the whole profile root). Returns whether
 *  the name was newly added (`true`) or replaced an existing value (`false`). */
export declare function setProfileEnvVar(profileId: string, name: string, value: string): boolean;
/** Remove one variable. Returns whether it was present. */
export declare function removeProfileEnvVar(profileId: string, name: string): boolean;
/** Every stored `{name: value}` for a profile — the ONLY function that
 *  returns raw values, called exclusively by `buildBrokerEnv`
 *  (`core/runtime/spawn-env.ts`) to inject them directly into a launched
 *  broker's env. Never throws: a stale/invalid/deleted profile id is a
 *  hot-path no-op (mirrors `readRawProfileConfig` in `core/config.ts`),
 *  because broker-env resolution must never fail a launch over a bad profile
 *  id. */
export declare function readProfileEnvVars(profileId: string | null): Record<string, string>;