/**
 * Scrubbers for structured config files during `trellis uninstall`.
 *
 * Each scrubber takes the file content (and any context it needs) and returns
 * `{ content, fullyEmpty }`:
 * - `content` is the post-scrub text to write back if the file should remain.
 * - `fullyEmpty` is true when, after stripping every trellis-managed value,
 *   nothing meaningful is left. The caller deletes the file in that case.
 *
 * Manifest path matching (for hooks.json scrubbers) uses substring containment
 * on the resolved `command` string. The leading `python3 ` / `python ` prefix
 * does not matter — we just look for the manifest-relative file path.
 */
export interface ScrubResult {
    content: string;
    fullyEmpty: boolean;
}
/**
 * Scrub a hooks-shaped settings JSON file.
 *
 * `mode = "nested"` → `hooks.{Event}.[ {matcher?, hooks: [ {command,...} ]} ]`
 * `mode = "flat"`   → `hooks.{Event}.[ {command,...} ]`
 *
 * Strips every entry whose command references a path in `deletedPaths`,
 * then bottom-up cleans empty containers (matcher block, event array, hooks
 * object). Any user-defined keys outside `hooks` (e.g. `env`, `model`,
 * `permissions`, `version`) are preserved verbatim.
 */
export declare function scrubHooksJson(content: string, deletedPaths: readonly string[], mode: "nested" | "flat"): ScrubResult;
/**
 * Scrub `.opencode/package.json`:
 * - remove `dependencies["@opencode-ai/plugin"]`
 * - if `dependencies` ends up empty → drop the field
 * - fully empty when nothing is left in the object
 */
export declare function scrubOpencodePackageJson(content: string): ScrubResult;
/**
 * Scrub `.pi/settings.json`:
 * - drop `enableSkillCommands` (trellis-flagged)
 * - remove trellis entries from `extensions`/`skills`/`prompts` arrays
 * - remove trellis-managed `packages["npm:pi-subagents"]` isolation override
 * - drop arrays that become empty
 */
export declare function scrubPiSettings(content: string): ScrubResult;
/**
 * Scrub `.codex/config.toml`.
 *
 * The current trellis-emitted file has two distinct chunks:
 * 1. The line `project_doc_fallback_filenames = ["AGENTS.md"]`
 * 2. A multi-line comment block that begins with the marker
 *    `# NOTE: Trellis's SessionStart + UserPromptSubmit hooks require opt-in.`
 *    and continues through `# be injected into Codex sessions.`
 *
 * Plus the leading "Project-scoped Codex defaults" header comments.
 *
 * Strategy: line-based removal. We strip:
 *  - the `project_doc_fallback_filenames = ...` line
 *  - any line that is *only* a comment introduced by trellis (the entire file
 *    as shipped is comments + that one assignment)
 *  - blank lines that surrounded those removals
 *
 * If the user added their own non-trellis lines, they are preserved as-is.
 * "Fully empty" = post-scrub content has no non-whitespace characters.
 */
export declare function scrubCodexConfigToml(content: string): ScrubResult;
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