Add self-improve-with-tinyfish skill (#197)

## Summary
- Adds the `self-improve-with-tinyfish` skill — enables coding agents to
research live web sources with TinyFish Search and Fetch, analyze source
coverage, and write reusable SKILL.md files they can install into their
own memory
- Includes SKILL.md with the full workflow (search, analyze, fetch,
write, install) and a README.md following the existing skill pattern

## Test plan
- [ ] Verify `npx skills add github.com/tinyfish-io/tinyfish-cookbook
--skill self-improve-with-tinyfish` installs correctly
- [ ] Test the skill triggers on prompts like "teach yourself X" or
"make a skill for Y"
- [ ] Verify TinyFish Search and Fetch calls work as documented in the
skill

---------

Co-authored-by: Simantak Dabhade <simantak@mac.local>

Author: simantak-dabhade

skills/tinyskill/README.md

@@ -0,0 +1,46 @@
+# tinyskill — Hermes Skill
+
+**Turn Hermes into a self-upgrading system that researches live web sources and writes its own reusable skills.**
+
+Ask Hermes things like:
+- *"Teach yourself the Stripe API"*
+- *"Learn how to use Playwright and save it as a skill"*
+- *"Make yourself a skill for deploying to Fly.io"*
+- *"Upgrade yourself with knowledge about Cloudflare Workers"*
+
+Hermes uses TinyFish Search and Fetch to research official docs, examples, and real-world usage patterns, then synthesizes everything into a focused SKILL.md it can reuse in future conversations.
+
+## What it does
+
+1. Checks for TinyFish CLI first, falls back to the raw API if CLI isn't available
+2. Searches the live web using TinyFish Search for authoritative sources
+3. Fetches and reads the best sources using TinyFish Fetch
+4. Analyzes coverage across setup, workflows, edge cases, and validation
+5. Writes a procedural, reusable SKILL.md with defaults, gotchas, and references
+6. Installs the skill into Hermes memory for future use
+
+## Why this is useful
+
+Instead of re-researching the same tool or framework every conversation, Hermes builds permanent procedural memory. Each skill it creates is:
+- Focused on execution, not tutorial-style explanation
+- Sourced from live, authoritative documentation
+- Structured with defaults, gotchas, and validation checks
+- Reusable across all future sessions
+
+## Requirements
+
+One of:
+- **TinyFish CLI** (preferred): `npm install -g @tiny-fish/cli` then `tinyfish auth login`
+- **API key**: Set `TINYFISH_API_KEY` in your environment. Get a key at https://agent.tinyfish.ai/api-keys
+
+## Install
+
+```bash
+npx skills add github.com/tinyfish-io/tinyfish-cookbook --skill tinyskill
+```
+
+## Built with
+
+- [TinyFish Search](https://docs.tinyfish.ai/search-api)
+- [TinyFish Fetch](https://docs.tinyfish.ai/fetch-api)
+- Part of the [TinyFish Cookbook](https://github.com/tinyfish-io/tinyfish-cookbook)