diff --git a/apps/web/src/sourceControlPresentation.ts b/apps/web/src/sourceControlPresentation.ts
index 116f27b95f97..4e757e6954a5 100644
--- a/apps/web/src/sourceControlPresentation.ts
+++ b/apps/web/src/sourceControlPresentation.ts
@@ -3,8 +3,6 @@ import type { ElementType } from "react";
 import type { SourceControlProviderInfo, SourceControlProviderKind } from "@t3tools/contracts";
 export {
   DEFAULT_CHANGE_REQUEST_TERMINOLOGY,
-  formatChangeRequestAction,
-  formatCreateChangeRequestPhrase,
   getChangeRequestTerminology,
   resolveChangeRequestPresentation,
   type ChangeRequestPresentation,
diff --git a/packages/shared/src/Net.ts b/packages/shared/src/Net.ts
index 4644576296bc..e3b653692880 100644
--- a/packages/shared/src/Net.ts
+++ b/packages/shared/src/Net.ts
@@ -63,6 +63,7 @@ export class NetService extends Context.Service<NetService, NetServiceShape>()(
   "@t3tools/shared/Net/NetService",
 ) {}
 
+/** @public Service construction is part of the canonical Effect module API. */
 export const make = () => {
   /**
    * Returns true when a TCP server can bind to {host, port}.
diff --git a/packages/shared/src/agentAwareness.ts b/packages/shared/src/agentAwareness.ts
index c0f5842eb7c5..77c7c845db31 100644
--- a/packages/shared/src/agentAwareness.ts
+++ b/packages/shared/src/agentAwareness.ts
@@ -43,7 +43,7 @@ export interface ProjectThreadAwarenessInput {
   >;
 }
 
-export function buildAgentAwarenessDeepLink(input: {
+function buildAgentAwarenessDeepLink(input: {
   readonly environmentId: EnvironmentId;
   readonly threadId: ThreadId;
 }): string {
diff --git a/packages/shared/src/composerTrigger.ts b/packages/shared/src/composerTrigger.ts
index c68a9963ffa8..6176d10d7908 100644
--- a/packages/shared/src/composerTrigger.ts
+++ b/packages/shared/src/composerTrigger.ts
@@ -115,18 +115,6 @@ export function detectComposerTrigger(
   };
 }
 
-export function parseStandaloneComposerSlashCommand(
-  text: string,
-): Exclude<ComposerSlashCommand, "model"> | null {
-  const match = /^\/(plan|default)\s*$/i.exec(text.trim());
-  if (!match) {
-    return null;
-  }
-  const command = match[1]?.toLowerCase();
-  if (command === "plan") return "plan";
-  return "default";
-}
-
 export function replaceTextRange(
   text: string,
   rangeStart: number,
diff --git a/packages/shared/src/httpReadiness.ts b/packages/shared/src/httpReadiness.ts
index be1b3475ff3e..5aad9d488aae 100644
--- a/packages/shared/src/httpReadiness.ts
+++ b/packages/shared/src/httpReadiness.ts
@@ -5,7 +5,7 @@ import * as Ref from "effect/Ref";
 import * as Schedule from "effect/Schedule";
 import { HttpClient, HttpClientRequest } from "effect/unstable/http";
 
-export const DEFAULT_HTTP_READY_PROBE_TIMEOUT_MS = 1_000;
+const DEFAULT_HTTP_READY_PROBE_TIMEOUT_MS = 1_000;
 
 /**
  * Normalizes an arbitrary readiness probe failure into a plain, structured value
diff --git a/packages/shared/src/model.ts b/packages/shared/src/model.ts
index 940778fba1ea..d6cb26f25be3 100644
--- a/packages/shared/src/model.ts
+++ b/packages/shared/src/model.ts
@@ -35,7 +35,7 @@ function getRawSelectionValueById(
   return selection?.value;
 }
 
-export function getProviderOptionSelectionValue(
+function getProviderOptionSelectionValue(
   selections: ReadonlyArray<ProviderOptionSelection> | null | undefined,
   id: string,
 ): string | boolean | undefined {
@@ -298,11 +298,6 @@ export function readCustomModelEntries(value: unknown): CustomModelDefinition[]
   return entries;
 }
 
-/** Slugs of a `customModels` setting, in stored order. */
-export function readCustomModelSlugs(value: unknown): string[] {
-  return readCustomModelEntries(value).map((entry) => entry.slug);
-}
-
 /**
  * Write a definition back to the compact stored shape: a bare slug when it
  * carries nothing custom, otherwise an entry with only the set fields.
@@ -361,7 +356,7 @@ export function resolveSelectableModel(
 }
 
 /** Trim a string, returning null for empty/missing values. */
-export function trimOrNull<T extends string>(value: T | null | undefined): T | null {
+function trimOrNull<T extends string>(value: T | null | undefined): T | null {
   if (typeof value !== "string") return null;
   const trimmed = value.trim() as T;
   return trimmed || null;
diff --git a/packages/shared/src/observability.ts b/packages/shared/src/observability.ts
index 67057c548806..9692a05f7592 100644
--- a/packages/shared/src/observability.ts
+++ b/packages/shared/src/observability.ts
@@ -303,7 +303,7 @@ export function truncateTraceAttributes(attributes: TraceAttributes): TraceAttri
   return truncated ?? attributes;
 }
 
-export function spanToTraceRecord(span: SerializableSpan): EffectTraceRecord {
+function spanToTraceRecord(span: SerializableSpan): EffectTraceRecord {
   const status = span.status as Extract<Tracer.SpanStatus, { _tag: "Ended" }>;
   const parentSpanId = Option.getOrUndefined(span.parent)?.spanId;
 
diff --git a/packages/shared/src/orchestrationTiming.ts b/packages/shared/src/orchestrationTiming.ts
index 98829ae052ad..2ae82c22a691 100644
--- a/packages/shared/src/orchestrationTiming.ts
+++ b/packages/shared/src/orchestrationTiming.ts
@@ -28,7 +28,7 @@ export function formatDuration(durationMs: number): string {
   return parts.join(" ");
 }
 
-export function isLatestTurnSettled(
+function isLatestTurnSettled(
   latestTurn: LatestTurnTiming | null,
   session: SessionActivityState | null,
 ): boolean {
diff --git a/packages/shared/src/relayClient.ts b/packages/shared/src/relayClient.ts
index 0a56e45191c2..7915c6b535f7 100644
--- a/packages/shared/src/relayClient.ts
+++ b/packages/shared/src/relayClient.ts
@@ -20,7 +20,7 @@ import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process";
 import { HostProcessArchitecture, HostProcessPlatform } from "./hostProcess.ts";
 
 export const CLOUDFLARED_VERSION = "2026.5.2";
-export const CLOUDFLARED_PATH_ENV_NAME = "T3CODE_CLOUDFLARED_PATH";
+const CLOUDFLARED_PATH_ENV_NAME = "T3CODE_CLOUDFLARED_PATH";
 
 export type RelayClientExecutableSource = "override" | "managed" | "path";
 
diff --git a/packages/shared/src/schemaJson.ts b/packages/shared/src/schemaJson.ts
index e132b7084b74..076ff67b62df 100644
--- a/packages/shared/src/schemaJson.ts
+++ b/packages/shared/src/schemaJson.ts
@@ -199,12 +199,12 @@ const parseLenientJsonGetter = SchemaGetter.onSome((input: string) => {
  * strips trailing commas and JS-style comments before parsing.
  * Encoding produces strict JSON via `JSON.stringify`.
  */
-export const fromLenientJsonString = new SchemaTransformation.Transformation(
+const fromLenientJsonString = new SchemaTransformation.Transformation(
   parseLenientJsonGetter,
   SchemaGetter.stringifyJson(),
 );
 
-export const prettyJsonString = SchemaGetter.parseJson<string>().compose(
+const prettyJsonString = SchemaGetter.parseJson<string>().compose(
   SchemaGetter.stringifyJson({ space: 2 }),
 );
 
diff --git a/packages/shared/src/schemaYaml.ts b/packages/shared/src/schemaYaml.ts
index 70e3c987ae00..55b5b97122ae 100644
--- a/packages/shared/src/schemaYaml.ts
+++ b/packages/shared/src/schemaYaml.ts
@@ -32,32 +32,8 @@ function formatYamlParseError(error: unknown): string {
   return `Invalid YAML (code=${error.code}${location}).`;
 }
 
-/**
- * Parses a YAML string into a value.
- *
- * **When to use**
- *
- * Use when you need a schema getter to parse a present encoded YAML string
- * during decoding.
- *
- * **Details**
- *
- * Parse failures become `SchemaIssue.InvalidValue` values.
- *
- * **Example** (Parse YAML)
- *
- * ```ts
- * import { parseYaml } from "@t3tools/shared/schemaYaml"
- *
- * const parse = parseYaml<string>()
- * // Getter<unknown, string>
- * ```
- *
- * @see {@link stringifyYaml} for the inverse operation
- */
-export function parseYaml<E extends string>(
-  options?: YamlParseOptions,
-): SchemaGetter.Getter<unknown, E> {
+/** Parses YAML during decoding, reporting parse failures as InvalidValue issues. */
+function parseYaml<E extends string>(options?: YamlParseOptions): SchemaGetter.Getter<unknown, E> {
   return SchemaGetter.transformOrFail((input: E) =>
     Effect.try({
       try: () => parseYamlString(input, options) as unknown,
@@ -66,32 +42,8 @@ export function parseYaml<E extends string>(
   );
 }
 
-/**
- * Stringifies a present value as YAML.
- *
- * **When to use**
- *
- * Use when you need a schema getter to serialize a present decoded value to
- * YAML text during encoding.
- *
- * **Details**
- *
- * Stringify failures become `SchemaIssue.InvalidValue` values.
- *
- * **Example** (Stringify YAML)
- *
- * ```ts
- * import { stringifyYaml } from "@t3tools/shared/schemaYaml"
- *
- * const stringify = stringifyYaml()
- * // Getter<string, unknown>
- * ```
- *
- * @see {@link parseYaml} for the inverse operation
- */
-export function stringifyYaml(
-  options?: YamlStringifyOptions,
-): SchemaGetter.Getter<string, unknown> {
+/** Serializes YAML during encoding, reporting stringify failures as InvalidValue issues. */
+function stringifyYaml(options?: YamlStringifyOptions): SchemaGetter.Getter<string, unknown> {
   return SchemaGetter.transformOrFail((input: unknown) =>
     Effect.try({
       try: () => stringifyYamlValue(input, options),
diff --git a/packages/shared/src/sourceControl.ts b/packages/shared/src/sourceControl.ts
index df88de595a3f..93b7c41ad44f 100644
--- a/packages/shared/src/sourceControl.ts
+++ b/packages/shared/src/sourceControl.ts
@@ -92,23 +92,12 @@ export function resolveChangeRequestPresentation(
   }
 }
 
-export function resolveChangeRequestPresentationForKind(
+function resolveChangeRequestPresentationForKind(
   kind: SourceControlProviderKind,
 ): ChangeRequestPresentation {
   return resolveChangeRequestPresentation({ kind, name: "", baseUrl: "" });
 }
 
-export function formatChangeRequestAction(
-  verb: "View" | "Create",
-  presentation: ChangeRequestPresentation,
-): string {
-  return `${verb} ${presentation.shortName}`;
-}
-
-export function formatCreateChangeRequestPhrase(presentation: ChangeRequestPresentation): string {
-  return `create ${presentation.shortName}`;
-}
-
 export function getChangeRequestTerminology(
   provider: SourceControlProviderInfo | null | undefined,
 ): ChangeRequestTerminology {
diff --git a/packages/shared/src/usageLimits.ts b/packages/shared/src/usageLimits.ts
index 8341796e39c3..e7582b1ecc64 100644
--- a/packages/shared/src/usageLimits.ts
+++ b/packages/shared/src/usageLimits.ts
@@ -161,7 +161,7 @@ export function limitsNotice(limits: ServerProviderUsageLimits): string | null {
   return limits.windows.length === 0 ? "No limits reported." : null;
 }
 
-export function resetMillis(window: ServerProviderUsageWindow): number | null {
+function resetMillis(window: ServerProviderUsageWindow): number | null {
   if (window.resetsAt === undefined) return null;
   const at = Date.parse(window.resetsAt);
   return Number.isFinite(at) ? at : null;