From 35eb92828aca2a442c93de1bc46eda1a1a5ac0f4 Mon Sep 17 00:00:00 2001
From: Time <time@users.noreply.teahub.xyz>
Date: Sun, 18 Oct 2026 07:07:39 +0000
Subject: [PATCH] Havre: the skill where agents look (.well-known/skills, the
 alternate link, robots) (#129)

Co-authored-by: Time <time@users.noreply.teahub.xyz>
---
 ventures/havre/.well-known/skills/index.json | 11 ++++++
 ventures/havre/index.html                    |  1 +
 ventures/havre/robots.txt                    |  4 +++
 ventures/havre/tests/agents.test.mjs         | 37 ++++++++++++++++++++
 ventures/havre/tools/build.sh                |  6 ++++
 5 files changed, 59 insertions(+)
 create mode 100644 ventures/havre/.well-known/skills/index.json
 create mode 100644 ventures/havre/robots.txt
 create mode 100644 ventures/havre/tests/agents.test.mjs

diff --git a/ventures/havre/.well-known/skills/index.json b/ventures/havre/.well-known/skills/index.json
new file mode 100644
index 0000000..476b130
--- /dev/null
+++ b/ventures/havre/.well-known/skills/index.json
@@ -0,0 +1,11 @@
+{
+  "$schema": "https://schemas.agentskills.io/discovery/0.2.0/schema.json",
+  "skills": [
+    {
+      "name": "havre",
+      "type": "skill-md",
+      "description": "Write AI characters as Havre cards (.havre.json), export them as Character Card V3 for SillyTavern-style apps, talk to them through Venice's API, and remix someone else's character into an original one, with credit.",
+      "url": "/skill.md"
+    }
+  ]
+}
diff --git a/ventures/havre/index.html b/ventures/havre/index.html
index a929226..241dc81 100644
--- a/ventures/havre/index.html
+++ b/ventures/havre/index.html
@@ -19,6 +19,7 @@
 <meta name="theme-color" content="#ffffff">
 <link rel="icon" href="favicon.svg" type="image/svg+xml">
 <link rel="alternate" type="text/plain" href="llms.txt" title="For agents">
+<link rel="alternate" type="text/markdown" href="skill.md" title="Skill">
 <link rel="stylesheet" href="style.css">
 <script type="module" src="app.js"></script>
 </head>
diff --git a/ventures/havre/robots.txt b/ventures/havre/robots.txt
new file mode 100644
index 0000000..b6b03fc
--- /dev/null
+++ b/ventures/havre/robots.txt
@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://havre.yolopreneur.lol/sitemap.txt
diff --git a/ventures/havre/tests/agents.test.mjs b/ventures/havre/tests/agents.test.mjs
new file mode 100644
index 0000000..8e5b612
--- /dev/null
+++ b/ventures/havre/tests/agents.test.mjs
@@ -0,0 +1,37 @@
+// node --test tests/*.test.mjs: where agents look: .well-known/skills/index.json, the alternate links, robots.txt
+import { test } from "node:test";
+import assert from "node:assert/strict";
+import { existsSync, readFileSync } from "node:fs";
+
+const root = new URL("../", import.meta.url);
+const read = (p) => readFileSync(new URL(p, root), "utf8");
+
+test("the skills index parses and points at a skill file that exists, with the name its front matter gives", () => {
+  const index = JSON.parse(read(".well-known/skills/index.json"));
+  assert.ok(Array.isArray(index.skills) && index.skills.length >= 1, "at least one skill");
+  for (const s of index.skills) {
+    assert.ok(s.name && s.description, "a name and a description");
+    assert.equal(s.type, "skill-md");
+    assert.match(s.url, /^\/[^/]/, "a path from the site root");
+    assert.ok(existsSync(new URL("." + s.url, root)), `${s.url} is served from the site root`);
+  }
+  const havre = index.skills.find((s) => s.name === "havre");
+  assert.ok(havre, "Havre's skill is listed");
+  assert.equal(havre.url, "/skill.md");
+  assert.match(read("skill.md"), /^---\nname: havre\n/, "skill.md's own front matter agrees on the name");
+});
+
+test("index.html carries the alternate links to llms.txt and skill.md, in the head", () => {
+  const head = read("index.html").split("</head>")[0];
+  assert.match(head, /<link rel="alternate" type="text\/plain" href="llms\.txt" title="For agents">/);
+  assert.match(head, /<link rel="alternate" type="text\/markdown" href="skill\.md" title="Skill">/);
+  for (const href of ["llms.txt", "skill.md"]) assert.ok(existsSync(new URL(href, root)), `${href} exists`);
+});
+
+test("robots.txt allows everything and names the sitemap", () => {
+  const robots = read("robots.txt");
+  assert.match(robots, /^User-agent: \*$/m);
+  assert.match(robots, /^Allow: \/$/m);
+  assert.doesNotMatch(robots, /^Disallow: *\S/m, "nothing is shut out");
+  assert.match(robots, /^Sitemap: https:\/\/havre\.yolopreneur\.lol\/sitemap\.txt$/m);
+});
diff --git a/ventures/havre/tools/build.sh b/ventures/havre/tools/build.sh
index f1e53bc..a55d2d3 100644
--- a/ventures/havre/tools/build.sh
+++ b/ventures/havre/tools/build.sh
@@ -14,6 +14,12 @@ cd "$(dirname "$0")/.."
 # this list.)
 rm -rf art fonts tools/paint.py tools/draw.py tools/vendor tests/smoke.py
 
+# what agents look for stays: .well-known/ (the skills index) and robots.txt are served as they are, so the build
+# never clears them, and fails if they're gone
+for f in .well-known/skills/index.json robots.txt; do
+  [ -f "$f" ] || { echo "tools/build.sh: $f is missing: agents look for it" >&2; exit 1; }
+done
+
 node tools/cast.mjs          # cast/index.js, the harbor's own as the module the page imports, from cast/*.havre.json
 node tools/pages.mjs         # c/ (a page and a V3 card for each of them, and the list) and sitemap.txt, from the same cards
 node --test tests/*.test.mjs