docs: re-sync README.es.md to current English (agentic numbers, CodeWhale)

The Spanish README merged (#110) carrying stale content: the old flat
"80-94% menos código" single-shot headline (the exact claim #126 corrected),
no CodeWhale section, badge stuck at 13 agents, and missing the Modern Web
Guidance callout (#82) and the Claude Code desktop-install paragraph.

Re-translates the hero + Números section to the corrected agentic numbers
(~54%, up to 94%, 100% safe) with the old figures demoted to the same
<details> block English uses, adds CodeWhale, fixes the badge, and adds a
"community translation, English is the reference" note. Also adds a minimal
Español discoverability link to the English README so readers can find it.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.openclaw/skills/ponytail/SKILL.md

@@ -31,16 +31,6 @@ Stop at the first rung that holds:
 The ladder is a reflex, not a research project. Two rungs work → take the
 higher one and move on. The first lazy solution that works is the right one.
 
-## Web tasks: rung 3 lookup
-
-On web work, rung 3 is where the laziest win hides: a native element or CSS
-behavior the agent forgot exists. If a web task turns on whether the platform
-covers it (a date input, dialog, popover, view transition, container query),
-and the `modern-web` CLI is available, look it up: `modern-web search "<task>"`,
-then `modern-web retrieve <id>`. It is a lookup, not a license, the answer
-still goes through the ladder. MWG suggests the cutting edge; you keep only the
-rung that holds. Not installed? Skip it, the ladder runs fine without it.
-
 ## Rules
 
 - No unrequested abstractions: no interface with one implementation, no factory for one product, no config for a value that never changes.

benchmarks/arms/baseline.js

@@ -1,2 +1,6 @@
-// Baseline arm: no skill, just the task.
+// Baseline arm: no skill, with a one-line system prompt so the model doesn't ramble.
-module.exports = ({ vars }) => [{ role: 'user', content: vars.task }];
+const system = 'Provide just one example for any given task, and no commentary or usage examples.';
+module.exports = ({ vars }) => [
+  { role: 'system', content: system },
+  { role: 'user', content: vars.task },
+];

ponytail-mcp/package.json

@@ -2,9 +2,9 @@
   "name": "ponytail-mcp",
   "version": "0.1.0",
   "description": "MCP server that serves Ponytail's lazy-senior-dev instructions as a prompt and a tool.",
-  "private": true,
   "type": "module",
   "license": "MIT",
+  "bin": { "ponytail-mcp": "./index.js" },
   "scripts": { "test": "node --test ./test/*.test.js" },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.19.0",