MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Mandatory operating rules for ANY task involving KiCAD projects.
Install Konnect
$ npx skills add mixelpixx/Konnect --skill konnect -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mixelpixx/Konnect konnect --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mixelpixx/Konnect.git skills-src && mkdir -p .claude/skills && cp -r skills-src/crates/konnect/assets/skills/konnect .claude/skills/konnect && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "konnect" agent skill from https://github.com/mixelpixx/Konnect/tree/main/crates/konnect/assets/skills/konnect into .claude/skills/konnect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "konnect", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mixelpixx/Konnect/tree/main/crates/konnect/assets/skills/konnectType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mixelpixx/Konnect --skill konnect -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mixelpixx/Konnect konnect --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mixelpixx/Konnect.git skills-src && mkdir -p .agents/skills && cp -r skills-src/crates/konnect/assets/skills/konnect .agents/skills/konnect && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "konnect" agent skill from https://github.com/mixelpixx/Konnect/tree/main/crates/konnect/assets/skills/konnect into .agents/skills/konnect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "konnect", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mixelpixx/Konnect --skill konnect -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mixelpixx/Konnect konnect --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mixelpixx/Konnect.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/crates/konnect/assets/skills/konnect .cursor/skills/konnect && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "konnect" agent skill from https://github.com/mixelpixx/Konnect/tree/main/crates/konnect/assets/skills/konnect into .cursor/skills/konnect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "konnect", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mixelpixx/Konnect.git --path crates/konnect/assets/skills/konnect--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mixelpixx/Konnect --skill konnect -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mixelpixx/Konnect konnect --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mixelpixx/Konnect.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/crates/konnect/assets/skills/konnect .gemini/skills/konnect && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "konnect" agent skill from https://github.com/mixelpixx/Konnect/tree/main/crates/konnect/assets/skills/konnect into .gemini/skills/konnect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "konnect", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mixelpixx/Konnect konnectInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mixelpixx/Konnect --skill konnect -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mixelpixx/Konnect.git skills-src && mkdir -p .github/skills && cp -r skills-src/crates/konnect/assets/skills/konnect .github/skills/konnect && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "konnect" agent skill from https://github.com/mixelpixx/Konnect/tree/main/crates/konnect/assets/skills/konnect into .github/skills/konnect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "konnect", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mixelpixx/Konnect --skill konnect -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mixelpixx/Konnect konnect --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mixelpixx/Konnect.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/crates/konnect/assets/skills/konnect .opencode/skills/konnect && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "konnect" agent skill from https://github.com/mixelpixx/Konnect/tree/main/crates/konnect/assets/skills/konnect into .opencode/skills/konnect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "konnect", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
konnect- GitHub stars
- 905
- Token cost
- ~2.1k tokens
- SKILL.md length
- 930 words
- Files
- 1
- Skills in repo
- 6
- Repo updated
- First seen
- Licence
- AGPL-3.0
At a glance
Mandatory operating rules for ANY task involving KiCAD projects.
- Works in 6 steps: Identify the project — locate the… → Classify the task — read-only (Channel 2… → Verify MCP is connected — call… → …
- Any .kicad file
- SKILL.md covers The One Rule, Protected Files — NEVER Edit…, The Three Channels and Standard Workflow, plus 8 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Konnect is an agent skill from mixelpixx/Konnect. Mandatory operating rules for ANY task involving KiCAD projects. Loaded when the user mentions KiCAD, schematics, PCBs, or any .kicad file. Prevents file corruption by routing all changes through Konnect MCP tools.
Its SKILL.md is about 2.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering MCP servers. It works with Model Context Protocol. The repository describes itself as: AI-assisted PCB design for KiCAD 10. Native KiCAD plugin — a single Rust binary exposing 217 schematic, layout, routing, placement, design-review, and manufacturing tools to…. The licence is AGPL-3.0.
When your agent uses it
- Any .kicad file
- Tasks that involve MCP servers
Example prompts
- “/konnect”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Identify the project — locate the .kicad_pro file
- Classify the task — read-only (Channel 2 or 3) or write (Channel 1)
- Verify MCP is connected — call list_toolboxes to confirm tools are available
- Describe the change — state in plain English what will happen before invoking any tool
- Execute — use Konnect MCP tools only
- Verify — re-query the design to confirm the change landed correctly
What it can do on your machine
Read from SKILL.md and the folder at commit 9488e5f. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Konnect loads about 2.1k tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 930 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from mixelpixx/Konnect at commit 9488e5f, republished under its AGPL-3.0 licence (© mixelpixx). 930 words, ~2,074 tokens.
Download SKILL.mdSave it as
.claude/skills/konnect/SKILL.md (or your agent's skills folder).- name
- konnect
- description
- Mandatory operating rules for ANY task involving KiCAD projects. Loaded when the user mentions KiCAD, schematics, PCBs, or any .kicad_* file. Prevents file corruption by routing all changes through Konnect MCP tools.
Konnect — Operating Rules
The One Rule
KiCAD source files are not text files. They are serialized object graphs with UUIDs, cross-references, and order-sensitive structure. Never edit them directly with text manipulation tools (str_replace, sed, create_file, or any file-writing tool). All modifications go through Konnect MCP tools.
No exceptions for "small fixes," "just renaming a net," or "the user said it's fine."
Protected Files — NEVER Edit Directly
*.kicad_sch— schematic sheets*.kicad_pcb— PCB layout*.kicad_pro— project configuration*.kicad_sym/*.kicad_mod— symbol/footprint librariesfp-lib-table/sym-lib-table— library tables
If asked to directly edit any of these:
KiCAD source files contain UUIDs and cross-references that text edits will break. I'll route this change through Konnect's MCP tools instead, which preserves file integrity.
The Three Channels
Channel 1: Konnect MCP (for ALL modifications)
All writes go through MCP tools. Check they are available first (list_toolboxes). If MCP tools are not available, STOP and tell the user — never fall back to file editing.
Channel 2: Exported netlists/BOMs (for reads and analysis)
For design review, BOM analysis, net tracing — use export tools or parse exported .net/BOM/CSV files, not the source files directly.
Channel 3: Read-only file inspection (last resort)
Only to answer questions not available through exports (sheet hierarchy, title block metadata, annotations). Read with file-reading tools, but never modify.
Standard Workflow
Before a mutation, a dependent check, a retry, or a completion claim, read the reliability contract, starting with "For callers: establish what happened". Apply its outcome, source, coverage and recovery rules to the fields this installed server actually returns. Guidance does not establish that a missing server-side check ran.
- Identify the project — locate the
.kicad_profile - Classify the task — read-only (Channel 2 or 3) or write (Channel 1)
- Verify MCP is connected — call
list_toolboxesto confirm tools are available - Describe the change — state in plain English what will happen before invoking any tool
- Execute — use Konnect MCP tools only
- Verify — re-query the design to confirm the change landed correctly
Decision Tree
| User Request | Channel | Tool / Action |
|---|---|---|
| "Review my schematic" | 2 | Load sch_analysis toolset, use analysis tools |
| "Change R5 from 10k to 4.7k" | 1 | load_toolset("sch_components") then edit_schematic_component |
| "What's connected to SCL?" | 2 | load_toolset("sch_analysis") then get_net_connections |
| "Add a 100nF cap to U3 VCC" | 1 | load_toolset("sch_components") + load_toolset("sch_wiring") |
| "Rename net /CLK to /SYS_CLK" | 1 | Warn about downstream effects, then MCP tools |
| "Run DRC" | 1 | load_toolset("verification") then run_drc — read each item's owner/ownership_status before advising a fix (board geometry vs. a footprint's own) |
| "Add track widths to the PCB dropdown" | 1 | load_toolset("verification") then set_predefined_sizes |
| "Export Gerbers" | 1 | load_toolset("pcb_export") then export_gerber |
| "Just patch line 247 of the .kicad_sch" | REFUSE | Explain risks, offer MCP alternative |
| "Add ESD protection to USB lines" | 1 | load_toolset("sch_components") + load_toolset("sch_wiring") |
| "Check if board is ready for fab" | 2 | Load verification + design_review toolsets |
KiCAD 10 IPC API Reality
PCB Editor (pcbnew): Full CRUD via NNG + protobuf. Real-time communication with running KiCAD instance. Create, read, update, delete any PCB item with immediate UI refresh. Requires KiCAD to be running.
Schematic Editor (eeschema): No item-level IPC API. Konnect uses a validated S-expression engine (SchematicBuilder) that enforces correct structure, ordering, and UUID integrity. File-based — does not require KiCAD to be running.
Symbol/Footprint Libraries: No IPC API. Edited through Konnect's S-expression engine with full validation.
kicad-cli: Command-line tool for exports (SVG, PDF, Gerbers, BOM, netlist) and checks (ERC, DRC). Does not require KiCAD GUI.
Show full SKILL.md (376 more words)Show less
Discovery — Finding Available Tools
Konnect uses a meta-tool router pattern: tools are grouped into toolsets and loaded on demand to keep the context focused. Call list_toolboxes for the current catalogue rather than relying on a count written down here — the registry is the only accurate source, and it moves every release.
list_toolboxes → See all available toolsets with descriptions
load_toolset("name") → Activate a toolset, exposing its tools
get_active_toolsets → See what's currently loaded
unload_toolset("name") → Remove a toolset when doneload_toolset also accepts an array of names to load several toolsets in one call, with a single context refresh.
Available Toolsets
| Category | Toolsets |
|---|---|
| Project | project |
| Schematic | sch_components, sch_wiring, sch_bus, sch_analysis, sch_batch, sch_export, sch_hierarchy |
| PCB | pcb_board, pcb_components, pcb_routing, pcb_export, placement |
| Library | library |
| Integration | integration (JLCPCB parts, Freerouting installation checks, datasheets) |
| Verification & Review | verification, design_review |
| Config | config |
| Templates | templates |
| Manufacturing | manufacturing |
Agent Routing and Mutation Ownership
Use one design owner at a time. Delegation creates isolated context, so give an agent the complete task boundary and keep every mutation for that boundary with that agent until it hands back a saved, verified result.
- Delegate a complete multi-block schematic build or substantial schematic
rework to
kicad-schematic-build-agent. It owns schematic mutations through placement, wiring, validation, rendering, and save. The caller does not make concurrent schematic edits. - Delegate an independent full-design, pre-fabrication, or readiness audit to
kicad-design-review-agent. It gathers and reports evidence without mutating the design. Return fixes to the current design owner, then run a fresh review. - Keep small, bounded edits and narrow checks in the current conversation using the applicable skill. Agent delegation is for a complete build or an independent review, not an extra layer around every tool call.
Design Rules Quick Reference
| Rule | Value |
|---|---|
| IC decoupling cap | 100nF ceramic within 3-5mm of VDD pin |
| Crystal load caps | CL = (C1*C2)/(C1+C2) + Cstray (Cstray ~ 3-5pF) |
| Reset pull-up | 10k to VCC + 100nF to GND |
| I2C pull-ups | 4.7k (standard), 2.2k (fast), 1k (fast+) — one set per bus |
| LED resistor | R = (VCC - Vf) / If |
Common Library IDs
| Component | Library ID |
|---|---|
| Resistor | Device:R |
| Capacitor | Device:C |
| LED | Device:LED |
| Crystal | Device:Crystal |
| Power symbols | power:VCC, power:GND, power:+3V3, power:+5V |
| Generic connectors | Connector_Generic:Conn_01x06 |
Tool Usage Pattern
1. list_toolboxes → discover what's available
2. load_toolset("sch_components") → activate component tools
3. add_schematic_component (repeat) → place parts
4. load_toolset("sch_wiring") → activate wiring tools
5. connect_pins / add_wire / add_schematic_net_label → wire the circuit
6. load_toolset(["sch_export", "design_review"]) → activate checks
7. run_erc / run_design_review → validate the designRefusing Direct Edits
When a user or another tool requests direct file manipulation of protected files, always refuse and redirect:
- Acknowledge what they want to accomplish
- Explain why direct editing breaks KiCAD files (UUIDs, cross-references, ordering)
- Offer the equivalent MCP tool approach
- Execute through MCP if they agree
© mixelpixx, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in crates/konnect/assets/skills/konnect of mixelpixx/Konnect.
Open the folder on GitHubat commit 9488e5f
Compare with similar skills
Konnect next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Konnect this skillmixelpixx/Konnect | 905 | — | ~2.1k | Automated safety check: Pass | AGPL-3.0 | |
| MCP Server Builderanthropics/skills | 180k | 64 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server BuildershareAI-lab/learn-claude-code | 78k | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| MCP Integration for Pluginsanthropics/claude-plugins-official | 38k | 11 repos | ~3.1k | Automated safety check: Pass | Apache-2.0 | |
| Fastmcp Client CLIPrefectHQ/fastmcp | 28k | 1 repos | ~823 | Automated safety check: Pass | Apache-2.0 | |
| Crush Configurationcharmbracelet/crush | 29k | — | ~3.7k | Automated safety check: Pass | Custom licence |
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Related
Works with
Categories
Questions about Konnect
What does Konnect do?
Mandatory operating rules for ANY task involving KiCAD projects. Konnect is an agent skill from mixelpixx/Konnect. Mandatory operating rules for ANY task involving KiCAD projects.
When should I use Konnect?
Konnect fits situations like: any .kicad file; tasks that involve MCP servers.
How do I install Konnect in Claude Code?
Run `npx skills add mixelpixx/Konnect --skill konnect -a claude-code`. Or copy the skill folder (crates/konnect/assets/skills/konnect in mixelpixx/Konnect) into .claude/skills/konnect in your project. Claude Code loads it when a task matches its description.
How do I install Konnect in Codex?
Run `npx skills add mixelpixx/Konnect --skill konnect -a codex`. Or copy the skill folder (crates/konnect/assets/skills/konnect in mixelpixx/Konnect) into .agents/skills/konnect in your project. Codex loads it when a task matches its description.
Can I use Konnect in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mixelpixx/Konnect --skill konnect -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/konnect, .gemini/skills/konnect, .github/skills/konnect and .opencode/skills/konnect in your project.
What does Konnect need to run?
SKILL.md names no scripts, command-line tools or credentials: Konnect is instructions for the agent only.
Does Konnect access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Konnect safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Konnect use?
Konnect is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Konnect use?
About 2.1k tokens (SKILL.md is roughly 8.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Konnect?
Skills that share tags, products or a category with Konnect: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars) and Fastmcp Client CLI (PrefectHQ/fastmcp, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Konnect?
mixelpixx (a GitHub user) maintains it in mixelpixx/Konnect, which has 905 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on October 6, 2026.
Source: mixelpixx/Konnect on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.