diff --git a/raw/fields__code.md b/raw/_processed/fields__code.md
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rename to raw/_processed/fields__code.md
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+++ b/wiki/_master-index.md
@@ -35,7 +35,7 @@ This 3-hop pattern works for hundreds of articles without vector search.
| [[wiki/reports/_index\|reports/]] | Weekly and monthly summaries — generate: `uv run python scripts/report-generator.py --weekly` | 1 |
| [[wiki/infrastructure/_index\|infrastructure/]] | Server inventory: all 10 SSH hosts — optical, optical-dev, optical-prod, baic, librechat, modocmms, box-cli, aimpress, pve | 12 |
| [[wiki/testing/_index\|testing/]] | Web app testing: functional, performance, security, UI types; TDD/BDD/Agile methodologies; Selenium/Cypress/Playwright/JMeter/OWASP ZAP tools | 1 |
-| [[wiki/payloadcms/_index\|payloadcms/]] | Full Payload CMS reference — getting started, config, database (Postgres/MongoDB/SQLite), all 22 field types, access control, hooks, authentication (cookies, JWT, API keys, custom strategies, token data), admin UI, custom components, Lexical rich text, live preview, versions/drafts, Local/REST/GraphQL APIs, queries, plugins, jobs queue, upload, ecommerce, production deploy, TypeScript, migration guides, i18n, localization | 65 |
+| [[wiki/payloadcms/_index\|payloadcms/]] | Full Payload CMS reference — getting started, config, database (Postgres/MongoDB/SQLite), all 22 field types, access control, hooks, authentication (cookies, JWT, API keys, custom strategies, token data), admin UI, custom components, Lexical rich text, live preview, versions/drafts, Local/REST/GraphQL APIs, queries, plugins, jobs queue, upload, ecommerce, production deploy, TypeScript, migration guides, i18n, localization | 66 |
| [[wiki/shared-patterns/_index\|shared-patterns/]] | Oliver Agency standard library patterns: httpx, structlog, pydantic-settings, alembic — reuse before writing from scratch | 4 |
| [[wiki/mistakes/_index\|mistakes/]] | Anti-patterns extracted from sessions — per-stack running lists (fastapi, react, docker, postgres, general) — injected at session start | 5 |
diff --git a/wiki/payloadcms/_index.md b/wiki/payloadcms/_index.md
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| [[wiki/payloadcms/fields-array\|Array Field]] | Repeating row field — config options, minRows/maxRows, localized, unique gotcha, custom RowLabel, nested arrays | raw/fields__array.md | 2026-05-15 |
| [[wiki/payloadcms/fields-blocks\|Blocks Field]] | Heterogeneous array layout builder — block config, blockReferences, filterOptions, copy/paste, Lexical rendering, image guidelines | raw/fields__blocks.md | 2026-05-15 |
| [[wiki/payloadcms/fields-checkbox\|Checkbox Field]] | Boolean field — config options, defaultValue, index, saveToJWT, hidden, virtual, custom components | raw/fields__checkbox.md | 2026-05-15 |
+| [[wiki/payloadcms/fields-code\|Code Field]] | Monaco editor UI (VS Code engine) storing a plain string — language syntax highlighting, editorOptions, custom components | raw/fields__code.md | 2026-05-15 |
diff --git a/wiki/payloadcms/fields-code.md b/wiki/payloadcms/fields-code.md
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+---
+title: "Code Field"
+aliases: [payload-code-field, code-field-payloadcms]
+tags: [payloadcms, fields, admin, monaco]
+sources: [raw/fields__code.md]
+created: 2026-05-15
+updated: 2026-05-15
+---
+
+## Overview
+
+The Code Field stores a plain string in the database but renders a **Monaco editor** (VS Code's editor) in the Admin Panel — with syntax highlighting, line numbers, and language support.
+
+```ts
+import type { Field } from 'payload'
+
+export const MyCodeField: Field = {
+ name: 'trackingCode',
+ type: 'code',
+ required: true,
+ admin: {
+ language: 'javascript',
+ },
+}
+```
+
+## Config Options
+
+| Option | Description |
+|--------|-------------|
+| `name` * | Property name in DB |
+| `label` | Field label in Admin Panel |
+| `unique` | DB-level unique index |
+| `index` | Build DB index for faster queries |
+| `minLength` / `maxLength` | String length validation |
+| `validate` | Custom validation function (client + server) |
+| `saveToJWT` | Include in user JWT if top-level auth field |
+| `hooks` | Field-level hooks |
+| `access` | Field-level access control |
+| `hidden` | Hide from API and Admin; still saved to DB |
+| `defaultValue` | Default string value |
+| `localized` | Enable localization (requires base config) |
+| `required` | Field must have a value |
+| `virtual` | Disable DB column or link to relationship |
+| `typescriptSchema` | Override generated TS type with JSON schema |
+| `custom` | Extension point for plugins |
+
+## Admin Options
+
+Extends the base [[wiki/payloadcms/fields-basic|Field Admin Config]] with:
+
+| Option | Description |
+|--------|-------------|
+| `language` | Monaco language ID (e.g. `'javascript'`, `'css'`, `'html'`) — full list at [microsoft/monaco-editor basic-languages](https://github.com/microsoft/monaco-editor/tree/main/src/basic-languages) |
+| `editorOptions` | Monaco `IDiffEditorConstructionOptions` — theme, fontSize, minimap, etc. |
+
+## Custom Components
+
+### Field Component
+
+```tsx
+// Server
+import { CodeField } from '@payloadcms/ui'
+import type { CodeFieldServerComponent } from 'payload'
+
+export const CustomCodeFieldServer: CodeFieldServerComponent = ({
+ clientField, path, schemaPath, permissions,
+}) =>
+
+// Client
+'use client'
+import type { CodeFieldClientComponent } from 'payload'
+export const CustomCodeFieldClient: CodeFieldClientComponent = (props) =>
+```
+
+### Label Component
+
+```tsx
+// Server
+import { FieldLabel } from '@payloadcms/ui'
+import type { CodeFieldLabelServerComponent } from 'payload'
+
+export const CustomCodeFieldLabelServer: CodeFieldLabelServerComponent = ({ clientField, path }) => (
+
+)
+```
+
+## Key Takeaways
+
+- **Stored as string** — no special DB type; `varchar`/`text` column depending on adapter
+- **Monaco editor** in Admin Panel — same engine as VS Code, supports 50+ languages
+- Set `admin.language` to get syntax highlighting — default is plain text
+- `editorOptions` gives full Monaco control (themes, keybindings, minimap, etc.)
+- Supports `minLength`/`maxLength` validation like any text field
+- `hidden: true` keeps data in DB but removes it from all API responses — useful for sensitive scripts
+- `saveToJWT: true` embeds the code string into the user token — use sparingly (JWT size)
+
+## Related
+
+- [[wiki/payloadcms/fields-basic|Fields: Basic]] — shared field options (index, hooks, access, virtual)
+- [[wiki/payloadcms/fields-complex|Fields: Complex]] — blocks/array for structured content
+- [[wiki/payloadcms/custom-components-authoring|Custom Components — Authoring Guide]] — how to swap field components
+- [[wiki/payloadcms/database-indexes|Database Indexes]] — when to set `index: true` or `unique`
+
+## Sources
+
+- `raw/fields__code.md` — compiled from https://payloadcms.com/docs/fields/code