diff --git a/docs/openprd.md b/docs/openprd.md
new file mode 100644
index 0000000..efc7fd9
--- /dev/null
+++ b/docs/openprd.md
@@ -0,0 +1,104 @@
+# OpenPRD
+
+OpenPRD is a lightweight, open standard for **product requirements documents** authored by humans or AI agents. It is maintained by Profullstack, Inc. as part of the LogicSRC open-standards surface.
+
+Where [OpenSpec](./openspec-comparison.md) models a *change* as a multi-file bundle (proposal + design + specs + tasks + deltas), OpenPRD deliberately models a *product decision* as **one Markdown file**. It answers "what are we building and why", not "how the change is structured for implementation". The single-file shape is the point: it is the low-ceremony front door that a `prd` CLI command can produce in one step.
+
+## Privacy
+
+**PRD documents are private by convention.** Only this standard is published. Generated PRDs live under a repo-local `prd/` directory that SHOULD be listed in `.gitignore`. Tools that write OpenPRD documents MUST NOT publish them anywhere by default.
+
+## File layout
+
+```txt
+prd/
+  <slug>/
+    prd.md          # one OpenPRD document (front-matter manifest + body)
+```
+
+- `<slug>` is a kebab-case identifier, unique within the repo, and equal to the manifest `id`.
+- A repo MAY contain many PRDs; each is a self-contained directory so attachments (mockups, notes) can sit beside `prd.md`.
+
+## Manifest (front-matter)
+
+Every `prd.md` opens with a YAML front-matter block validated by
+[`openprd-prd.schema.json`](../packages/schemas/schemas/openprd-prd.schema.json):
+
+```yaml
+---
+openprd: "0.1"        # standard version (required)
+id: park-service-expansion   # kebab-case slug == directory name (required)
+title: Parked-domain service expansion   # (required)
+status: draft         # draft | review | active | shipped | archived (required)
+owner: did:key:…      # optional DID/handle of the accountable owner
+repo: moshcoder/moshcoding    # optional target repo (owner/name)
+created: 2026-07-12   # optional ISO date
+updated: 2026-07-12   # optional ISO date
+tags: [growth, monetization]  # optional labels
+supersedes: [old-slug]        # optional ids this PRD replaces
+---
+```
+
+## Body sections
+
+The body is Markdown with a fixed, ordered set of `##` sections. All are required (a section MAY be a single line such as `_None._`), which keeps every PRD skimmable and diffable:
+
+1. `## Problem` — the user/business problem, and why it matters now.
+2. `## Goals` — what success looks like, as outcomes (not features).
+3. `## Non-Goals` — explicitly out of scope, to bound the work.
+4. `## Users` — who this is for; personas or segments.
+5. `## Requirements` — numbered `R1`, `R2`, … each prefixed with a priority tag `[P0]`/`[P1]`/`[P2]`. One capability per line.
+6. `## UX Notes` — flows, states, and constraints that shape the experience.
+7. `## Success Metrics` — how the goals will be measured.
+8. `## Risks & Open Questions` — known risks and decisions still owed.
+
+### Minimal example
+
+```markdown
+---
+openprd: "0.1"
+id: launch-flip
+title: Coming-soon → live launch flip
+status: draft
+---
+
+## Problem
+Parked domains have no one-click path from coming-soon to a live site.
+
+## Goals
+Owners flip a domain live and notify its waitlist in a single action.
+
+## Non-Goals
+_Building the live site itself._
+
+## Users
+Domain owners running parked pages on the service.
+
+## Requirements
+- R1 [P0] A per-domain "go live" action publishes/redirects the domain.
+- R2 [P0] Flipping live emails that domain's waitlist.
+- R3 [P1] The action is reversible within a grace window.
+
+## UX Notes
+One button on the domain's admin row; confirm dialog shows the waitlist size.
+
+## Success Metrics
+Time-to-live per domain; waitlist → visit conversion after launch.
+
+## Risks & Open Questions
+- Email deliverability on bulk launch sends.
+- Should redirects preserve `?dn=` analytics?
+```
+
+## Relationship to LogicSRC
+
+OpenPRD is intentionally decoupled from the rest of LogicSRC: a PRD is just a file and needs no service to exist. When coordination is wanted, a PRD's `Requirements` map cleanly onto LogicSRC `task` documents (each `R#` → one task), and the PRD `owner`/`repo` reuse LogicSRC identity and repo conventions. That bridge is optional and lives in tooling, not in this standard.
+
+## Conformance
+
+A document conforms to OpenPRD `0.1` when:
+
+- it lives at `prd/<slug>/prd.md`,
+- its front-matter validates against `openprd-prd.schema.json`,
+- `id` equals `<slug>`, and
+- all eight body sections are present in order.
diff --git a/packages/schemas/fixtures/openprd-prd.yaml b/packages/schemas/fixtures/openprd-prd.yaml
new file mode 100644
index 0000000..c1957a3
--- /dev/null
+++ b/packages/schemas/fixtures/openprd-prd.yaml
@@ -0,0 +1,10 @@
+openprd: "0.1"
+id: park-service-expansion
+title: Parked-domain service expansion
+status: draft
+owner: moshcoder.coinpay
+repo: moshcoder/moshcoding
+created: 2026-07-12
+tags:
+  - growth
+  - monetization
diff --git a/packages/schemas/schemas/openprd-prd.schema.json b/packages/schemas/schemas/openprd-prd.schema.json
new file mode 100644
index 0000000..7a775fa
--- /dev/null
+++ b/packages/schemas/schemas/openprd-prd.schema.json
@@ -0,0 +1,61 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://schemas.logicsrc.com/openprd-prd.schema.json",
+  "title": "OpenPRD Product Requirements Document",
+  "description": "The front-matter manifest of an OpenPRD document. OpenPRD is a deliberately lightweight, single-file PRD standard: one prd/<slug>/prd.md per product decision, authored by a human or an AI agent. The document body is Markdown with a fixed set of sections; this schema governs only the YAML front-matter. PRD documents are private by convention (gitignored) — only the OpenPRD standard itself is published.",
+  "type": "object",
+  "required": ["openprd", "id", "title", "status"],
+  "additionalProperties": false,
+  "properties": {
+    "openprd": {
+      "type": "string",
+      "pattern": "^\\d+\\.\\d+(\\.\\d+)?$",
+      "description": "OpenPRD standard version this document conforms to, e.g. '0.1'."
+    },
+    "id": {
+      "type": "string",
+      "pattern": "^[a-z0-9][a-z0-9-]*$",
+      "description": "Kebab-case slug, unique within the repo. Also the directory name: prd/<id>/prd.md."
+    },
+    "title": {
+      "type": "string",
+      "minLength": 1,
+      "description": "Human-readable product/feature title."
+    },
+    "status": {
+      "type": "string",
+      "enum": ["draft", "review", "active", "shipped", "archived"],
+      "description": "Lifecycle stage of the PRD."
+    },
+    "owner": {
+      "type": "string",
+      "description": "Optional DID or handle of the accountable owner, e.g. a LogicSRC agent or account DID."
+    },
+    "repo": {
+      "type": "string",
+      "description": "Optional owner/name of the repository this PRD targets."
+    },
+    "created": {
+      "type": "string",
+      "format": "date",
+      "description": "ISO date (YYYY-MM-DD) the PRD was created."
+    },
+    "updated": {
+      "type": "string",
+      "format": "date",
+      "description": "ISO date (YYYY-MM-DD) of the last substantive edit."
+    },
+    "tags": {
+      "type": "array",
+      "items": { "type": "string" },
+      "uniqueItems": true,
+      "description": "Optional freeform labels for grouping PRDs."
+    },
+    "supersedes": {
+      "type": "array",
+      "items": { "type": "string", "pattern": "^[a-z0-9][a-z0-9-]*$" },
+      "uniqueItems": true,
+      "description": "Optional ids of earlier PRDs this one replaces."
+    }
+  }
+}
diff --git a/packages/validators/src/schemas.ts b/packages/validators/src/schemas.ts
index ab6e73a..a042612 100644
--- a/packages/validators/src/schemas.ts
+++ b/packages/validators/src/schemas.ts
@@ -22,6 +22,7 @@ import credentialProviderSchema from "../../schemas/schemas/logicsrc-credential-
 import credentialSyncPlanSchema from "../../schemas/schemas/logicsrc-credential-sync-plan.schema.json" with { type: "json" };
 import credentialSyncRunSchema from "../../schemas/schemas/logicsrc-credential-sync-run.schema.json" with { type: "json" };
 import credentialAuditEventSchema from "../../schemas/schemas/logicsrc-credential-audit-event.schema.json" with { type: "json" };
+import openprdPrdSchema from "../../schemas/schemas/openprd-prd.schema.json" with { type: "json" };
 
 export const schemas = {
   agent: agentSchema,
@@ -47,7 +48,8 @@ export const schemas = {
   "credential-provider": credentialProviderSchema,
   "credential-sync-plan": credentialSyncPlanSchema,
   "credential-sync-run": credentialSyncRunSchema,
-  "credential-audit-event": credentialAuditEventSchema
+  "credential-audit-event": credentialAuditEventSchema,
+  "openprd-prd": openprdPrdSchema
 } as const;
 
 export type SchemaKind = keyof typeof schemas;