diff --git a/src/core/import-file.ts b/src/core/import-file.ts
index 35d59f558..f988ee1cf 100644
--- a/src/core/import-file.ts
+++ b/src/core/import-file.ts
@@ -36,7 +36,7 @@ import {
 } from './embedding-context.ts';
 import { loadSearchModeConfig, resolveSearchMode } from './search/mode.ts';
 import { normalizeAliasList } from './search/alias-normalize.ts';
-import { isUndefinedTableError, warnOncePerProcess, validateSlug } from './utils.ts';
+import { isUndefinedTableError, warnOncePerProcess } from './utils.ts';
 import { computeCorpusGeneration } from './contextual-retrieval-service.ts';
 import { runGuardrails } from './guardrails.ts';
 
@@ -301,15 +301,6 @@ export async function importFromContent(
   // silently fabricated a duplicate at (default, slug) — causing later
   // bare-slug subqueries (getTags, deleteChunks, etc.) to crash with 21000.
   const sourceId = opts.sourceId;
-  // Canonicalize the slug ONCE up front so every per-page write in this import
-  // agrees on it. putPage lowercases via validateSlug, but the tag/link/timeline
-  // reconcilers (tx.addTag, addLink, addTimelineEntry) query the slug as passed.
-  // A mixed-case slug from a remote put_page (e.g. 'Projects/Team-Wiki/Roadmap')
-  // therefore stored the page as 'projects/team-wiki/roadmap' then threw
-  // `addTag failed: page "…" not found`, rolling back the whole write. Disk
-  // imports already pass slugifyPath() output (lowercase), so this is a no-op
-  // for them and idempotent with putPage's own internal call.
-  slug = validateSlug(slug);
   // Reject oversized payloads before any parsing, chunking, or embedding happens.
   // Uses Buffer.byteLength to count UTF-8 bytes the same way disk size would,
   // so the network path behaves identically to the file path.
diff --git a/test/put-page-mixed-case-slug-tags.test.ts b/test/put-page-mixed-case-slug-tags.test.ts
deleted file mode 100644
index 9d6576856..000000000
--- a/test/put-page-mixed-case-slug-tags.test.ts
+++ /dev/null
@@ -1,117 +0,0 @@
-/**
- * Regression — put_page with a MIXED-CASE slug + frontmatter tags.
- *
- * Bug: `validateSlug` (utils.ts) lowercases, and `putPage` calls it — so the
- * page row is stored under the lowercased slug. But `addTag` (and addLink /
- * addTimelineEntry) query the RAW slug. A put_page with a capitalized slug
- * (e.g. 'Projects/Team-Wiki/Quarterly-Roadmap') therefore stored the page as
- * 'projects/team-wiki/quarterly-roadmap', then the tag-reconciliation loop
- * called addTag('Projects/Team-Wiki/Quarterly-Roadmap', …) whose existence
- * check found no row and threw `addTag failed: page "…" not found`, rolling
- * back the ENTIRE write — so the page never persisted under either casing.
- * A capital letter in a slug arriving over the HTTP MCP server (where slugs
- * are passed verbatim) plus a frontmatter tag was enough to trigger it.
- *
- * Fix: the put_page handler canonicalizes the slug once at the boundary
- * (validateSlug), so the subagent allow-list check, putPage, and the
- * tag/link/timeline reconciliation all agree on the lowercased slug.
- *
- * Runs against in-memory PGLite (hermetic, no DATABASE_URL), mirroring the
- * isolation discipline of put-page-provenance.test.ts.
- */
-
-import { describe, test, expect, beforeAll, beforeEach, afterAll } from 'bun:test';
-import { PGLiteEngine } from '../src/core/pglite-engine.ts';
-import { operations } from '../src/core/operations.ts';
-import type { OperationContext } from '../src/core/operations.ts';
-import { configureGateway, resetGateway, __setEmbedTransportForTests } from '../src/core/ai/gateway.ts';
-
-const putPageOp = operations.find((o) => o.name === 'put_page')!;
-
-let engine: PGLiteEngine;
-
-beforeAll(async () => {
-  // Same gateway-hermeticity guard as put-page-provenance.test.ts: pin the
-  // embed model + stub the transport so put_page's embed never hits the net.
-  configureGateway({
-    embedding_model: 'openai:text-embedding-3-large',
-    embedding_dimensions: 1536,
-    env: { ...process.env, OPENAI_API_KEY: process.env.OPENAI_API_KEY || 'sk-test-stub' },
-  });
-  __setEmbedTransportForTests(async ({ values }: any) => ({
-    embeddings: values.map(() => new Array(1536).fill(0)),
-    usage: { tokens: 0 },
-  }) as any);
-
-  engine = new PGLiteEngine();
-  await engine.connect({});
-  await engine.initSchema();
-});
-
-afterAll(async () => {
-  await engine.disconnect();
-  __setEmbedTransportForTests(null);
-  resetGateway();
-});
-
-beforeEach(async () => {
-  await engine.executeRaw('DELETE FROM pages', []);
-});
-
-function makeCtx(opts: Partial<OperationContext> = {}): OperationContext {
-  return {
-    engine,
-    config: { engine: 'pglite' as const },
-    logger: {
-      info: () => { /* noop */ },
-      warn: () => { /* noop */ },
-      error: () => { /* noop */ },
-    },
-    dryRun: false,
-    remote: true,
-    sourceId: 'default',
-    ...opts,
-  };
-}
-
-async function pageExists(slug: string): Promise<boolean> {
-  const rows = await engine.executeRaw('SELECT id FROM pages WHERE slug = $1', [slug]) as unknown[];
-  return rows.length === 1;
-}
-
-async function tagsFor(slug: string): Promise<string[]> {
-  const rows = await engine.executeRaw(
-    'SELECT t.tag FROM tags t JOIN pages p ON p.id = t.page_id WHERE p.slug = $1 ORDER BY t.tag',
-    [slug],
-  ) as Array<{ tag: string }>;
-  return rows.map((r) => r.tag);
-}
-
-describe('put_page — mixed-case slug + frontmatter tags', () => {
-  test('capitalized slug with tags succeeds and lands under the canonical lowercased slug', async () => {
-    const ctx = makeCtx({ remote: true });
-
-    // Pre-fix this threw `addTag failed: page "Projects/Team-Wiki/Quarterly-Roadmap" not found`.
-    await putPageOp.handler(ctx, {
-      slug: 'Projects/Team-Wiki/Quarterly-Roadmap',
-      content: '---\ntype: note\ntitle: Quarterly Roadmap\ntags: [planning, draft]\n---\n\nMixed-case slug plus frontmatter tags.',
-    });
-
-    // Page persisted under the lowercased canonical slug …
-    expect(await pageExists('projects/team-wiki/quarterly-roadmap')).toBe(true);
-    // … and NOT under the original mixed casing.
-    expect(await pageExists('Projects/Team-Wiki/Quarterly-Roadmap')).toBe(false);
-    // Tags reconciled onto the same canonical row (the step that used to throw).
-    expect(await tagsFor('projects/team-wiki/quarterly-roadmap')).toEqual(['draft', 'planning']);
-  });
-
-  test('lowercase slug with tags still works (no regression)', async () => {
-    const ctx = makeCtx({ remote: true });
-    await putPageOp.handler(ctx, {
-      slug: 'projects/team-wiki/release-checklist',
-      content: '---\ntype: note\ntitle: Release Checklist\ntags: [planning]\n---\n\nLowercase control case.',
-    });
-    expect(await pageExists('projects/team-wiki/release-checklist')).toBe(true);
-    expect(await tagsFor('projects/team-wiki/release-checklist')).toEqual(['planning']);
-  });
-});