From ccf2f517a26642207297ac27f34a2a469d327d72 Mon Sep 17 00:00:00 2001
From: Kiko Beats <josefrancisco.verdu@gmail.com>
Date: Thu, 17 Sep 2026 11:11:33 +0200
Subject: [PATCH 1/2] refactor(mcp): shorten product tool descriptions

Parameters already live in JSON Schema and microlink_docs; repeating them on every tool burns tokens and undercuts the docs tool.

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 packages/mcp/src/index.js              |  7 ++++---
 packages/mcp/src/tools/audio.js        |  7 +------
 packages/mcp/src/tools/audios.js       |  6 +-----
 packages/mcp/src/tools/docs.js         |  6 +-----
 packages/mcp/src/tools/emails.js       |  6 +-----
 packages/mcp/src/tools/embed.js        |  7 +------
 packages/mcp/src/tools/extract.js      |  7 +------
 packages/mcp/src/tools/function.js     |  7 +------
 packages/mcp/src/tools/html.js         |  7 +------
 packages/mcp/src/tools/images.js       |  6 +-----
 packages/mcp/src/tools/lighthouse.js   |  6 +-----
 packages/mcp/src/tools/links.js        |  6 +-----
 packages/mcp/src/tools/logo.js         |  7 +------
 packages/mcp/src/tools/markdown.js     |  7 +------
 packages/mcp/src/tools/metadata.js     |  7 +------
 packages/mcp/src/tools/pdf.js          |  8 +-------
 packages/mcp/src/tools/screenshot.js   | 10 +---------
 packages/mcp/src/tools/search.js       |  7 +------
 packages/mcp/src/tools/technologies.js |  6 +-----
 packages/mcp/src/tools/text.js         |  7 +------
 packages/mcp/src/tools/video.js        |  7 +------
 packages/mcp/src/tools/videos.js       |  6 +-----
 packages/mcp/test/stdio-server.test.js |  1 +
 packages/mcp/test/tools.test.js        | 16 ++++++++++++++++
 24 files changed, 42 insertions(+), 125 deletions(-)

diff --git a/packages/mcp/src/index.js b/packages/mcp/src/index.js
index d3af2c1..d9ce459 100644
--- a/packages/mcp/src/index.js
+++ b/packages/mcp/src/index.js
@@ -9,9 +9,10 @@ const require = createRequire(import.meta.url)
 const { version: pkgVersion } = require('../package.json')
 
 const DEFAULT_INSTRUCTIONS = [
-  'Turn any public URL into screenshots, PDFs, metadata, readable content (Markdown, HTML or plain text), media sources, technology stacks, Lighthouse audits, Google search results or custom-scraped fields.',
-  'Always pass full URLs including the protocol.',
-  "If you are unsure of a product tool's parameters, call microlink_docs first.",
+  'Product tools turn a public URL into a Microlink result. Always pass full URLs including the protocol.',
+  "Call microlink_docs({ product }) for a product tool's parameters; do not guess nested options.",
+  'video/audio return the primary playable asset; videos/audios/links/images collect every match on the page.',
+  'extract is custom MQL rules, not full-page markdown/html/text. search takes a query. Checkout tools buy an API key.',
   'Without an API key, requests use the free endpoint (50 requests/day); pass apiKey or set MICROLINK_API_KEY for PRO.',
   'On failure, read the error message and the hint/reason fields and adjust the request instead of retrying blindly.'
 ].join(' ')
diff --git a/packages/mcp/src/tools/audio.js b/packages/mcp/src/tools/audio.js
index 03cfacd..212f2f2 100644
--- a/packages/mcp/src/tools/audio.js
+++ b/packages/mcp/src/tools/audio.js
@@ -5,12 +5,7 @@ export function audio (server) {
   register(
     server,
     'microlink_audio',
-    [
-      'Detect the primary playable audio of any public URL via Microlink.',
-      'Works with SoundCloud, Spotify, Mixcloud, and other audio platforms.',
-      'Returns the audio asset: `url`, `type`, `duration`, `size`, `duration_pretty`, `size_pretty`.',
-      'Mirrors the `microlink.audio(url)` library method. For every audio on the page, use `microlink_audios`.'
-    ].join(' '),
+    'Primary playable audio asset. For every audio URL on the page, use microlink_audios.',
     audioInputSchema,
     urlMethod('audio')
   )
diff --git a/packages/mcp/src/tools/audios.js b/packages/mcp/src/tools/audios.js
index b0df3cd..a4daa3f 100644
--- a/packages/mcp/src/tools/audios.js
+++ b/packages/mcp/src/tools/audios.js
@@ -5,11 +5,7 @@ export function audios (server) {
   register(
     server,
     'microlink_audios',
-    [
-      'Collect every audio source (`<audio>`, `<source>`) from any public URL via Microlink.',
-      'Returns an array of absolute, deduped audio URLs.',
-      'Mirrors the `microlink.audios(url)` library method. For the primary playable audio, use `microlink_audio`.'
-    ].join(' '),
+    'Every audio source URL on the page. For the primary playable audio, use microlink_audio.',
     audiosInputSchema,
     urlMethod('audios')
   )
diff --git a/packages/mcp/src/tools/docs.js b/packages/mcp/src/tools/docs.js
index ed02fca..cec5f6c 100644
--- a/packages/mcp/src/tools/docs.js
+++ b/packages/mcp/src/tools/docs.js
@@ -7,11 +7,7 @@ export function docs (server) {
   register(
     server,
     'microlink_docs',
-    [
-      'Fetch the canonical, complete parameter documentation for a Microlink product.',
-      'Call this before using a product tool whose parameters you do not know well.',
-      'Returns the product markdown directly from microlink.io, the same source used by `microlink <product> docs`.'
-    ].join(' '),
+    'Canonical parameter docs for a Microlink product. Same markdown as `microlink <product> docs`.',
     docsInputSchema,
     (_client, { product }) => loadProductDocs(product)
   )
diff --git a/packages/mcp/src/tools/emails.js b/packages/mcp/src/tools/emails.js
index bd52ef1..4584b4b 100644
--- a/packages/mcp/src/tools/emails.js
+++ b/packages/mcp/src/tools/emails.js
@@ -5,11 +5,7 @@ export function emails (server) {
   register(
     server,
     'microlink_emails',
-    [
-      'Collect every email address present on any public URL via Microlink.',
-      'Detects addresses from `mailto:` links and plain text alike; returns a deduped array.',
-      'Mirrors the `microlink.emails(url)` library method.'
-    ].join(' '),
+    'Every email address on the page.',
     emailsInputSchema,
     urlMethod('emails')
   )
diff --git a/packages/mcp/src/tools/embed.js b/packages/mcp/src/tools/embed.js
index ce2a1fd..1816d8f 100644
--- a/packages/mcp/src/tools/embed.js
+++ b/packages/mcp/src/tools/embed.js
@@ -5,12 +5,7 @@ export function embed (server) {
   register(
     server,
     'microlink_embed',
-    [
-      'Get the oEmbed-style embeddable iframe for any public URL via Microlink (YouTube, Tweet, CodePen, ...).',
-      'Returns `{ html, scripts }` — the markup to embed plus the script URLs it needs.',
-      'Pass `maxWidth` / `maxHeight` to constrain the embed size.',
-      'Mirrors the `microlink.embed(url)` library method.'
-    ].join(' '),
+    'oEmbed iframe for a URL (`{ html, scripts }`). Null when none is found.',
     embedInputSchema,
     urlMethod('embed')
   )
diff --git a/packages/mcp/src/tools/extract.js b/packages/mcp/src/tools/extract.js
index a8ab94f..fef805c 100644
--- a/packages/mcp/src/tools/extract.js
+++ b/packages/mcp/src/tools/extract.js
@@ -5,12 +5,7 @@ export function extract (server) {
   register(
     server,
     'microlink_extract',
-    [
-      'Scrape custom fields from any public URL via Microlink using MQL data rules.',
-      'Pass `data` with the rules object (selector/selectorAll, attr, type, evaluate; nested rules and arrays supported); returns the extracted `data` object. By default no page metadata is included; pass `meta: true` to also get the default metadata.',
-      'Also supports combining capabilities (`screenshot`, `pdf`, `iframe`, `insights`) and browser controls in the same request.',
-      'Mirrors the `microlink.extract(url, rules)` library method.'
-    ].join(' '),
+    'Custom MQL data rules on a URL. Not full-page markdown/html/text. Can attach screenshot/pdf/insights on the same request.',
     extractInputSchema,
     (client, { url, data, ...options }) =>
       client.extract(url, data ?? {}, options)
diff --git a/packages/mcp/src/tools/function.js b/packages/mcp/src/tools/function.js
index c5a3638..229d9a9 100644
--- a/packages/mcp/src/tools/function.js
+++ b/packages/mcp/src/tools/function.js
@@ -5,12 +5,7 @@ export function fn (server) {
   register(
     server,
     'microlink_function',
-    [
-      'Run a JavaScript function against any public URL inside Microlink’s server-side browser sandbox.',
-      'Pass `code` as the function source (e.g. "async ({ page }) => page.title()"); it receives `{ page, response, ...args }` and its return value comes back in `value`.',
-      'Combine with browser options such as `javascript`, `waitUntil`, `waitForSelector`, `click`, `scroll`, `headers`, and `proxy`.',
-      'Also returns `isFulfilled`, `profiling`, and `logging`. Mirrors the `microlink.function(url, code)` library method.'
-    ].join(' '),
+    "Run JavaScript against a URL in Microlink's browser sandbox. Pass `code`; returns `{ isFulfilled, value }`.",
     functionInputSchema,
     (client, { url, code, ...options }) => client.function(url, code, options),
     INTERACTIVE_ANNOTATIONS
diff --git a/packages/mcp/src/tools/html.js b/packages/mcp/src/tools/html.js
index 55f1d8b..c115f51 100644
--- a/packages/mcp/src/tools/html.js
+++ b/packages/mcp/src/tools/html.js
@@ -5,12 +5,7 @@ export function html (server) {
   register(
     server,
     'microlink_html',
-    [
-      'Extract the HTML content of any public URL via Microlink.',
-      'Returns the page HTML as a string. Pass `selector` to scope it to part of the page.',
-      'Combine with browser options such as `javascript`, `waitUntil`, `waitForSelector`, `headers`, and `proxy`.',
-      'Mirrors the `microlink.html(url)` library method.'
-    ].join(' '),
+    'Page HTML as a string. For custom CSS/MQL fields, use microlink_extract.',
     htmlInputSchema,
     urlMethod('html')
   )
diff --git a/packages/mcp/src/tools/images.js b/packages/mcp/src/tools/images.js
index 1d358cd..8807494 100644
--- a/packages/mcp/src/tools/images.js
+++ b/packages/mcp/src/tools/images.js
@@ -5,11 +5,7 @@ export function images (server) {
   register(
     server,
     'microlink_images',
-    [
-      'Collect every image (`<img src>`) from any public URL via Microlink.',
-      'Returns an array of absolute, deduped image URLs. Pass `selectorAll` to scope the collection.',
-      'Mirrors the `microlink.images(url)` library method.'
-    ].join(' '),
+    'Every absolute image URL on the page.',
     imagesInputSchema,
     urlMethod('images')
   )
diff --git a/packages/mcp/src/tools/lighthouse.js b/packages/mcp/src/tools/lighthouse.js
index ba67986..a019986 100644
--- a/packages/mcp/src/tools/lighthouse.js
+++ b/packages/mcp/src/tools/lighthouse.js
@@ -5,11 +5,7 @@ export function lighthouse (server) {
   register(
     server,
     'microlink_lighthouse',
-    [
-      'Run a Google Lighthouse audit (performance, accessibility, best-practices, SEO) for any public URL via Microlink.',
-      'Returns the Lighthouse report.',
-      'Mirrors the `microlink.lighthouse(url)` library method.'
-    ].join(' '),
+    'Google Lighthouse report for a public URL.',
     lighthouseInputSchema,
     urlMethod('lighthouse')
   )
diff --git a/packages/mcp/src/tools/links.js b/packages/mcp/src/tools/links.js
index 03684de..1a8edc1 100644
--- a/packages/mcp/src/tools/links.js
+++ b/packages/mcp/src/tools/links.js
@@ -5,11 +5,7 @@ export function links (server) {
   register(
     server,
     'microlink_links',
-    [
-      'Collect every link (`<a href>`) from any public URL via Microlink.',
-      'Returns an array of absolute, deduped URLs. Pass `selectorAll` to scope the collection.',
-      'Mirrors the `microlink.links(url)` library method.'
-    ].join(' '),
+    'Every absolute link URL on the page.',
     linksInputSchema,
     urlMethod('links')
   )
diff --git a/packages/mcp/src/tools/logo.js b/packages/mcp/src/tools/logo.js
index b484350..61b60a7 100644
--- a/packages/mcp/src/tools/logo.js
+++ b/packages/mcp/src/tools/logo.js
@@ -5,12 +5,7 @@ export function logo (server) {
   register(
     server,
     'microlink_logo',
-    [
-      'Extract the brand logo of any public URL via Microlink.',
-      'Returns the logo asset: `url`, `type`, `width`, `height`, `size`, and `size_pretty`.',
-      'Pass `square: true` to prefer a square (icon-shaped) variant.',
-      'Mirrors the `microlink.logo(url, { square })` library method.'
-    ].join(' '),
+    'Brand logo of a public URL as an asset. Null when none is detected.',
     logoInputSchema,
     urlMethod('logo')
   )
diff --git a/packages/mcp/src/tools/markdown.js b/packages/mcp/src/tools/markdown.js
index fb0924a..534de6f 100644
--- a/packages/mcp/src/tools/markdown.js
+++ b/packages/mcp/src/tools/markdown.js
@@ -5,12 +5,7 @@ export function markdown (server) {
   register(
     server,
     'microlink_markdown',
-    [
-      'Convert any public URL to Markdown via Microlink.',
-      'Returns the page content as a Markdown string. Pass `selector` to scope it to part of the page.',
-      'Combine with browser options such as `javascript`, `waitUntil`, `waitForSelector`, `headers`, and `proxy`.',
-      'Mirrors the `microlink.markdown(url)` library method.'
-    ].join(' '),
+    'Page content as Markdown. For custom CSS/MQL fields, use microlink_extract.',
     markdownInputSchema,
     urlMethod('markdown')
   )
diff --git a/packages/mcp/src/tools/metadata.js b/packages/mcp/src/tools/metadata.js
index d9b3a5c..878a42c 100644
--- a/packages/mcp/src/tools/metadata.js
+++ b/packages/mcp/src/tools/metadata.js
@@ -5,12 +5,7 @@ export function metadata (server) {
   register(
     server,
     'microlink_metadata',
-    [
-      'Extract normalized metadata from any public URL via Microlink.',
-      'Returns the metadata object: `title`, `description`, `lang`, `author`, `publisher`, `date`, `url`, `image` (with dimensions and file info), and `logo`.',
-      'Pass `meta: false` to skip extraction, or a config object to include/exclude fields (e.g. `{ logo: true, title: true }`).',
-      'Mirrors the `microlink.metadata(url)` library method.'
-    ].join(' '),
+    'Normalized metadata from a public URL (`title`, `description`, `image`, `logo`, ...).',
     metadataInputSchema,
     urlMethod('metadata')
   )
diff --git a/packages/mcp/src/tools/pdf.js b/packages/mcp/src/tools/pdf.js
index 8b07222..c5a5831 100644
--- a/packages/mcp/src/tools/pdf.js
+++ b/packages/mcp/src/tools/pdf.js
@@ -5,13 +5,7 @@ export function pdf (server) {
   register(
     server,
     'microlink_pdf',
-    [
-      'Generate a PDF of any public URL via Microlink and return the asset object (`url`, `type`, `size`, ...) with a permanent CDN URL.',
-      'Pass `pdf: true` for defaults or `pdf: { ... }` for options; `pdf: {}` is treated as `true`.',
-      'Use `pdf.format` ("A4" default, "Letter", "Legal", ...), `pdf.landscape`, `pdf.margin` (string or top/bottom/left/right object), `pdf.scale` (0.1-2.0), `pdf.pageRanges` ("1-5"), or `pdf.width`/`pdf.height`.',
-      'Combine with `styles`, `scripts`, `modules`, `mediaType`, `waitForSelector`, and `waitUntil` for full control.',
-      'Mirrors the `microlink.pdf(url, options)` library method.'
-    ].join(' '),
+    'Generate a PDF of a public URL. Returns a CDN asset (`url`, `type`, `size`).',
     pdfInputSchema,
     capabilityMethod('pdf', 'pdf')
   )
diff --git a/packages/mcp/src/tools/screenshot.js b/packages/mcp/src/tools/screenshot.js
index 05c15a6..b8b0f6d 100644
--- a/packages/mcp/src/tools/screenshot.js
+++ b/packages/mcp/src/tools/screenshot.js
@@ -5,15 +5,7 @@ export function screenshot (server) {
   register(
     server,
     'microlink_screenshot',
-    [
-      'Capture a screenshot of any public URL via Microlink and return the asset object (`url`, `type`, `width`, `height`, `size`, ...) with a permanent CDN URL.',
-      'Pass `screenshot: true` for defaults or `screenshot: { ... }` for options; `screenshot: {}` is treated as `true`.',
-      'Use `screenshot.fullPage` to capture the whole scrollable page.',
-      'Use `screenshot.animated` to capture an animated screenshot (GIF/MP4) instead of a still image.',
-      'Use `screenshot.element` (CSS selector) to capture a specific element, `screenshot.type` for format ("jpeg", default "png"), `screenshot.omitBackground` for transparency, `screenshot.overlay` for browser chrome, `screenshot.palette` to also extract dominant colors, or `screenshot.codeScheme` to theme code pages.',
-      'Combine with `device`, `viewport`, `click`, `scroll`, `styles`, `scripts`, `modules`, `waitForSelector`, `waitForTimeout`, `waitUntil`, `colorScheme`, and `mediaType`.',
-      'Mirrors the `microlink.screenshot(url, options)` library method.'
-    ].join(' '),
+    'Capture a screenshot of a public URL. Returns a CDN asset (`url`, `type`, `width`, `height`, `size`).',
     screenshotInputSchema,
     capabilityMethod('screenshot', 'screenshot')
   )
diff --git a/packages/mcp/src/tools/search.js b/packages/mcp/src/tools/search.js
index bf8f278..d56d595 100644
--- a/packages/mcp/src/tools/search.js
+++ b/packages/mcp/src/tools/search.js
@@ -5,12 +5,7 @@ export function search (server) {
   register(
     server,
     'microlink_search',
-    [
-      'Search Google and get structured results via Microlink (requires an API key).',
-      'Returns `results` (title, url, description) plus `knowledgeGraph`, `peopleAlsoAsk`, and `relatedSearches` when available.',
-      'Use `type` for a vertical ("search" default, "news", "images", "videos", "places", "maps", "shopping", "scholar", "patents", "autocomplete"), and `limit` / `page` / `location` / `period` to refine.',
-      'Google search operators (`site:`, `filetype:`, quotes, ...) work as-is. Mirrors the `microlink.search(query)` library method.'
-    ].join(' '),
+    'Google as structured data. Takes `query` (not a URL). Requires an API key.',
     searchInputSchema,
     (client, { query, ...options }) => client.search(query, options)
   )
diff --git a/packages/mcp/src/tools/technologies.js b/packages/mcp/src/tools/technologies.js
index c889117..d884121 100644
--- a/packages/mcp/src/tools/technologies.js
+++ b/packages/mcp/src/tools/technologies.js
@@ -5,11 +5,7 @@ export function technologies (server) {
   register(
     server,
     'microlink_technologies',
-    [
-      'Detect the technology stack behind any public URL via Microlink (Wappalyzer).',
-      'Returns an array of detected technologies (frameworks, CDNs, analytics, e-commerce, etc.).',
-      'Mirrors the `microlink.technologies(url)` library method.'
-    ].join(' '),
+    'Detected tech stack (Wappalyzer) for a public URL.',
     technologiesInputSchema,
     urlMethod('technologies')
   )
diff --git a/packages/mcp/src/tools/text.js b/packages/mcp/src/tools/text.js
index 749f3ef..769749f 100644
--- a/packages/mcp/src/tools/text.js
+++ b/packages/mcp/src/tools/text.js
@@ -5,12 +5,7 @@ export function text (server) {
   register(
     server,
     'microlink_text',
-    [
-      'Extract the plain text of any public URL via Microlink.',
-      'Returns the readable page text as a string. Pass `selector` to scope it to part of the page.',
-      'Combine with browser options such as `javascript`, `waitUntil`, `waitForSelector`, `headers`, and `proxy`.',
-      'Mirrors the `microlink.text(url)` library method.'
-    ].join(' '),
+    'Readable page text as a string. For custom CSS/MQL fields, use microlink_extract.',
     textInputSchema,
     urlMethod('text')
   )
diff --git a/packages/mcp/src/tools/video.js b/packages/mcp/src/tools/video.js
index c588e0f..fae0829 100644
--- a/packages/mcp/src/tools/video.js
+++ b/packages/mcp/src/tools/video.js
@@ -5,12 +5,7 @@ export function video (server) {
   register(
     server,
     'microlink_video',
-    [
-      'Detect the primary playable video of any public URL via Microlink.',
-      'Works with YouTube, Vimeo, Twitter/X, TikTok, Instagram, and hundreds of other platforms.',
-      'Returns the video asset: `url`, `type`, `duration`, `size`, `width`, `height`, `duration_pretty`, `size_pretty`.',
-      'Mirrors the `microlink.video(url)` library method. For every video on the page, use `microlink_videos`.'
-    ].join(' '),
+    'Primary playable video asset. For every video URL on the page, use microlink_videos.',
     videoInputSchema,
     urlMethod('video')
   )
diff --git a/packages/mcp/src/tools/videos.js b/packages/mcp/src/tools/videos.js
index bd16bf6..1812f75 100644
--- a/packages/mcp/src/tools/videos.js
+++ b/packages/mcp/src/tools/videos.js
@@ -5,11 +5,7 @@ export function videos (server) {
   register(
     server,
     'microlink_videos',
-    [
-      'Collect every video source (`<video>`, `<source>`) from any public URL via Microlink.',
-      'Returns an array of absolute, deduped video URLs.',
-      'Mirrors the `microlink.videos(url)` library method. For the primary playable video, use `microlink_video`.'
-    ].join(' '),
+    'Every video source URL on the page. For the primary playable video, use microlink_video.',
     videosInputSchema,
     urlMethod('videos')
   )
diff --git a/packages/mcp/test/stdio-server.test.js b/packages/mcp/test/stdio-server.test.js
index c7e8ae6..cc055ba 100644
--- a/packages/mcp/test/stdio-server.test.js
+++ b/packages/mcp/test/stdio-server.test.js
@@ -17,6 +17,7 @@ test('createMicrolinkServer returns MCP server instance', () => {
 test('createMicrolinkServer sets default instructions and honors overrides', () => {
   const withDefaults = createMicrolinkServer()
   assert.match(withDefaults.server._instructions, /microlink_docs/)
+  assert.match(withDefaults.server._instructions, /Checkout tools/)
 
   const custom = createMicrolinkServer({ instructions: 'Custom.' })
   assert.equal(custom.server._instructions, 'Custom.')
diff --git a/packages/mcp/test/tools.test.js b/packages/mcp/test/tools.test.js
index 38f19d6..c991374 100644
--- a/packages/mcp/test/tools.test.js
+++ b/packages/mcp/test/tools.test.js
@@ -280,6 +280,22 @@ test('every tool declares a human-friendly title', () => {
   }
 })
 
+test('product tool descriptions name the job, not every parameter', () => {
+  const configs = {}
+  tools({
+    registerTool: (name, config) => {
+      configs[name] = config
+    }
+  })
+
+  assert.doesNotMatch(configs.microlink_screenshot.description, /fullPage/)
+  assert.doesNotMatch(configs.microlink_pdf.description, /pageRanges/)
+  assert.doesNotMatch(configs.microlink_extract.description, /selectorAll/)
+  assert.match(configs.microlink_video.description, /microlink_videos/)
+  assert.match(configs.microlink_videos.description, /microlink_video/)
+  assert.match(configs.microlink_markdown.description, /microlink_extract/)
+})
+
 test('errors are surfaced as MCP isError with code/message', async t => {
   const handlers = captureTool(metadata)
   await withStubbedRequest(

From 41eee3a8c841a2861771e0d7c6e0ec36c8e83c00 Mon Sep 17 00:00:00 2001
From: Kiko Beats <josefrancisco.verdu@gmail.com>
Date: Thu, 17 Sep 2026 09:24:14 +0000
Subject: [PATCH 2/2] fix(mcp): clarify checkout tool scope

---
 packages/mcp/src/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/mcp/src/index.js b/packages/mcp/src/index.js
index d9ce459..6a17fc9 100644
--- a/packages/mcp/src/index.js
+++ b/packages/mcp/src/index.js
@@ -12,7 +12,7 @@ const DEFAULT_INSTRUCTIONS = [
   'Product tools turn a public URL into a Microlink result. Always pass full URLs including the protocol.',
   "Call microlink_docs({ product }) for a product tool's parameters; do not guess nested options.",
   'video/audio return the primary playable asset; videos/audios/links/images collect every match on the page.',
-  'extract is custom MQL rules, not full-page markdown/html/text. search takes a query. Checkout tools buy an API key.',
+  'extract is custom MQL rules, not full-page markdown/html/text. search takes a query. Checkout tools start and track the purchase of an API key.',
   'Without an API key, requests use the free endpoint (50 requests/day); pass apiKey or set MICROLINK_API_KEY for PRO.',
   'On failure, read the error message and the hint/reason fields and adjust the request instead of retrying blindly.'
 ].join(' ')