chore: remove MAINTENANCE.md, walkthrough.md and .agent/rules

.agent/rules/rules.md

@@ -1,8 +0,0 @@
----
-trigger: always_on
-glob:
-description:
----
-
-1. alla fine del processo di modifica ricordati di fare il push della repo su github.
-2. ricordati sempre di aggiornare ongi singola parte della repo, dall'inizio alla fine

MAINTENANCE.md

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-# Repository Maintenance Protocol
-
-To ensure consistency and quality, the following steps MUST be performed for **every single change** involving skills or documentation.
-
-## 1. Skill Creation & Modification
-
-- [ ] **Check Duplicates**: Before adding a skill, check `skills_index.json` or `ls skills/` to ensure it doesn't exist.
-- [ ] **Folder Structure**: Each skill must have its own folder in `skills/<skill-name>`.
-- [ ] **SKILL.md**: Every skill directory MUST contain a `SKILL.md` file with valid frontmatter:
-
-  ```markdown
-  ---
-  name: Skill Name
-  description: Brief description.
-  ---
-  ```
-
-## 2. Validation & Indexing (CRITICAL)
-
-Running the scripts is **MANDATORY** after any change to `skills/`.
-
-- [ ] **Validate Skills**: Run the validation script to check for formatting errors.
-
-  ```bash
-  python3 scripts/validate_skills.py
-  ```
-
-- [ ] **Generate Index**: Update `skills_index.json`. This is the source of truth for the agent.
-
-  ```bash
-  python3 scripts/generate_index.py
-  ```
-
-## 3. Documentation Updates
-
-The `README.md` does not auto-update. You must manually sync it with the index.
-
-- [ ] **About / Introduction**: Update the total count in the opening paragraph and blockquote.
-  - `> **The Ultimate Collection of [X]+ Agentic Skills...`
-  - `...library of **[X] high-performance skills**...`
-- [ ] **Features & Categories Table**: If the new skill fits a category, update the table in `# Features & Categories`.
-- [ ] **Full Skill Registry Table**: Add the new skill to the main table.
-  - Format: `| **[Name]** | [Description] | [Path] |`
-  - Verify alphabetical order.
-- [ ] **Credits & Sources**: If the skill was imported from a community repo, add a credit link in `# Credits & Sources`.
-  - Example: `- **[repo-name](url)**: Source for [skill-name].`
-
-## 4. Git Operations
-
-- [ ] **Check Status**: `git status` to see what changed.
-- [ ] **Add All Files**: Ensure new skill folders are added (`git add skills/`).
-- [ ] **Commit**: Use a descriptive Conventional Commit message (e.g., `feat: add new security skills`, `docs: update readme count`).
-- [ ] **Push**: `git push` to origin. **NEVER FORGET THIS.**
-
-## 5. Agent Artifacts (Internal)
-
-- [ ] **Walkthrough**: Update `walkthrough.md` in the brain/artifact directory to reflect the session's achievements.

walkthrough.md

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-# OpenAI Skills Extraction Walkthrough
-
-I have successfully extracted and adapted valuable patterns from the `openai/skills` repository into our local collection.
-
-## Changes Made
-
-### New Skills
-
-Adapted from OpenAI's curated and experimental catalogs:
-
-- **[address-github-comments](file:///Users/nicco/Antigravity%20Projects/antigravity-awesome-skills/skills/address-github-comments/SKILL.md)**: A systematic guide for addressing PR and issue feedback using the `gh` CLI.
-- **[concise-planning](file:///Users/nicco/Antigravity%20Projects/antigravity-awesome-skills/skills/concise-planning/SKILL.md)**: A template-driven skill for generating atomic, actionable checklists for development tasks.
-
-### Skill Improvements
-
-Improved our existing skill authoring standards using OpenAI's `skill-creator` principles:
-
-- **[writing-skills](file:///Users/nicco/Antigravity%20Projects/antigravity-awesome-skills/skills/writing-skills/SKILL.md)**: Integrated "Degrees of Freedom" and "Progressive Disclosure" principles to optimize context usage and instruction specificity.
-
-### Global Integration
-
-- Updated [skills_index.json](file:///Users/nicco/Antigravity%20Projects/antigravity-awesome-skills/skills_index.json) to register the new skills.
-- Updated [README.md](file:///Users/nicco/Antigravity%20Projects/antigravity-awesome-skills/README.md) to include them in the registry and add `openai/skills` to the **Credits & Sources** section.
-
-## Verification Results
-
-### Automated Validation
-
-I ran the `validate_skills.py` script, and all skills passed.
-
-```bash
-🔍 Validating skills in: /Users/nicco/Antigravity Projects/antigravity-awesome-skills/skills
-✅ Found and checked 71 skills.
-✨ All skills passed basic validation!
-```
-
-### Manual Audit
-
-- Verified frontmatter formatting for both new skills.
-- Confirmed that the "Progressive Disclosure" and "Degrees of Freedom" sections were correctly merged into `writing-skills`.
-- Verified that the README table links and descriptions match the new skills.
-
-### GitHub Deployment
-
-- Pushed the changes to the `main` branch of [antigravity-awesome-skills](https://github.com/sickn33/antigravity-awesome-skills).
-  ```bash
-  faf478f..113bc99  main -> main
-  ```
-
----
-
-Summary of final updates:
-
-- Added `openai/skills` to Credits.
-- Updated total skill count to **71** across the entire README.
-- Populated the **Full Skill Registry** table with all 71 skills.