Enum ModuleId 

pub enum ModuleId {
    ToolsSearch,
    ToolsApplyPatch,
    ToolsPersistentShell,
    ToolsBackground,
    ToolsWeb,
    ToolsQuestion,
    Todos,
    PlanMode,
    Subagents,
    PermissionsApprovals,
    PermissionsRules,
    PermissionsSandbox,
    PermissionsProtectedPaths,
    Trust,
    McpClient,
    McpServer,
    Hooks,
    Plugins,
    Memory,
    Checkpoint,
    SessionTree,
    SessionShare,
    Reduction,
    DeferredTools,
    Cache,
    ModelCatalog,
    ModelOauth,
    Lsp,
    Formatters,
    Tui,
    Server,
    Notify,
    StructuredOutput,
    Telemetry,
    Integrations,
}

The 35 §2 capability modules, numbered exactly as the design’s module table (§2, rows 1-35).

Variants

ToolsSearch

1. tools.search — glob/content-search/dir-listing tools.

ToolsApplyPatch

2. tools.apply_patch — the apply_patch envelope tool.

ToolsPersistentShell

3. tools.persistent_shell — persistent/interactive shell.

ToolsBackground

4. tools.background — background exec + monitor/event feed.

ToolsWeb

5. tools.web — web fetch + web search.

ToolsQuestion

6. tools.question — structured user-question tool.

Todos

7. todos — plan/task-checklist tool (update_plan).

PlanMode

8. plan_mode — plan enter/exit restriction mode.

Subagents

9. subagents — spawn/named/background sub-agents.

PermissionsApprovals

10. permissions.approvals — approval modes, interactive ask, caching.

PermissionsRules

11. permissions.rules — allow/ask/deny rule language.

PermissionsSandbox

12. permissions.sandbox — OS-level fs/network sandbox.

PermissionsProtectedPaths

13. permissions.protected_paths — never-auto-approved paths.

Trust

14. trust — project/workspace trust gate.

McpClient

15. mcp.client — MCP stdio/remote/OAuth/resources/prompts.

McpServer

16. mcp.server — harness-as-MCP-server.

Hooks

17. hooks — config-registered lifecycle hooks.

Plugins

18. plugins — in-process extension API.

Memory

19. memory — auto memory (agent-maintained, cross-session).

Checkpoint

20. checkpoint — file checkpointing / shadow-git.

SessionTree

21. session.tree — in-place tree, rewind, branch summaries.

SessionShare

22. session.share — public session-sharing links.

Reduction

23. reduction — genuinely-optional lossless reduction policies.

DeferredTools

24. deferred_tools — deferred tool advertising + tool_search.

Cache

25. cache — cache-aware architecture (plans, warnings, TTL).

ModelCatalog

26. model.catalog — aliases, fallback chains, small/utility model.

ModelOauth

27. model.oauth — subscription OAuth login.

Lsp

28. lsp — LSP diagnostics in the edit path + query tool.

Formatters

29. formatters — format-on-write.

Tui

30. tui — full-screen TUI.

Server

31. server — full programmatic RPC/HTTP server.

Notify

32. notify — external notify program / desktop / email.

StructuredOutput

33. structured_output — structured final output.

Telemetry

34. telemetry — OTel/analytics exporters.

Integrations

35. integrations — cloud, IDE/ACP, CI bots, web UI, worktrees.

Implementations

impl ModuleId

pub const ALL: &'static [ModuleId]

Every module, in §2 table order (1-35).

pub fn config_key(&self) -> &'static str

The §3.1 config key this module reads (the same strings crate::configfile::MODULE_NAMES/crate::configfile::NESTED_MODULE_NAMES use), for diagnostics. The two schema-collapsed modules (see the module doc comment) report their HOST table’s name, since they have no independent table of their own.

pub fn is_active(&self, hc: &HarnessConfig) -> bool

Whether this module is active in a resolved HarnessConfig — the same module_enabled/module_setting_bool logic the P2 resolver already computes (§3.5 step 7’s “module-activation set”), reused verbatim rather than re-derived, so ModuleActivation can never diverge from crate::configfile::Resolved::modules.

Trait Implementations

impl Clone for ModuleId

fn clone(&self) -> ModuleId

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ModuleId

impl Debug for ModuleId

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ModuleId

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ModuleId

impl Hash for ModuleId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ModuleId

fn cmp(&self, other: &ModuleId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ModuleId

fn eq(&self, other: &ModuleId) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for ModuleId

fn partial_cmp(&self, other: &ModuleId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ModuleId