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.
bkend.ai database — CRUD, column types, filtering, sorting, relations, indexing.
Apache-2.0Auto-check: notes
Install Bkend Data
$ npx skills add ww-w-ai/bkit-claude-code --skill bkend-data -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ww-w-ai/bkit-claude-code bkend-data --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/ww-w-ai/bkit-claude-code.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/bkend-data .claude/skills/bkend-data && 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 "bkend-data" agent skill from https://github.com/ww-w-ai/bkit-claude-code/tree/main/skills/bkend-data into .claude/skills/bkend-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bkend-data", 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/ww-w-ai/bkit-claude-code/tree/main/skills/bkend-dataType 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 ww-w-ai/bkit-claude-code --skill bkend-data -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ww-w-ai/bkit-claude-code bkend-data --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ww-w-ai/bkit-claude-code.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/bkend-data .agents/skills/bkend-data && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "bkend-data" agent skill from https://github.com/ww-w-ai/bkit-claude-code/tree/main/skills/bkend-data into .agents/skills/bkend-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bkend-data", 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 ww-w-ai/bkit-claude-code --skill bkend-data -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ww-w-ai/bkit-claude-code bkend-data --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ww-w-ai/bkit-claude-code.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/bkend-data .cursor/skills/bkend-data && 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 "bkend-data" agent skill from https://github.com/ww-w-ai/bkit-claude-code/tree/main/skills/bkend-data into .cursor/skills/bkend-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bkend-data", 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/ww-w-ai/bkit-claude-code.git --path skills/bkend-data--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 ww-w-ai/bkit-claude-code --skill bkend-data -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ww-w-ai/bkit-claude-code bkend-data --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ww-w-ai/bkit-claude-code.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/bkend-data .gemini/skills/bkend-data && 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 "bkend-data" agent skill from https://github.com/ww-w-ai/bkit-claude-code/tree/main/skills/bkend-data into .gemini/skills/bkend-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bkend-data", 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 ww-w-ai/bkit-claude-code bkend-dataInstalls 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 ww-w-ai/bkit-claude-code --skill bkend-data -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ww-w-ai/bkit-claude-code.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/bkend-data .github/skills/bkend-data && 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 "bkend-data" agent skill from https://github.com/ww-w-ai/bkit-claude-code/tree/main/skills/bkend-data into .github/skills/bkend-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bkend-data", 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 ww-w-ai/bkit-claude-code --skill bkend-data -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ww-w-ai/bkit-claude-code bkend-data --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ww-w-ai/bkit-claude-code.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/bkend-data .opencode/skills/bkend-data && 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 "bkend-data" agent skill from https://github.com/ww-w-ai/bkit-claude-code/tree/main/skills/bkend-data into .opencode/skills/bkend-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bkend-data", 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
bkend-data- GitHub stars
- 601
- Token cost
- ~1.2k tokens
- SKILL.md length
- 383 words
- Files
- 1
- Skills in repo
- 44
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
bkend.ai database — CRUD, column types, filtering, sorting, relations, indexing.
- SKILL.md covers Column Types (7), Constraints, Auto System Fields and MCP Table Management Tools, plus 7 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Bkend Data is an agent skill from ww-w-ai/bkit-claude-code. bkend.ai database — CRUD, column types, filtering, sorting, relations, indexing. Triggers: bkend table, bkend CRUD, bkend column, bkend relation, bkend data
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Model Context Protocol. The repository describes itself as: bkit Vibecoding Kit - PDCA methodology + Claude Code mastery for AI-native development. The licence is Apache-2.0.
Example prompts
- “/bkend-data”
Requirements
- Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep, Bash, mcp__bkend__*
What it can do on your machine
Read from SKILL.md and the folder at commit 85b4913. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditGlobGrepBashmcp__bkend__*
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
Links to these hosts (documentation or services it may open):
raw.githubusercontent.com
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
Bkend Data loads about 1.2k tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 383 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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Write, Edit, Glob, Grep, Bash, mcp__bkend__*
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 ww-w-ai/bkit-claude-code at commit 85b4913, republished under its Apache-2.0 licence (© ww-w-ai). 383 words, ~1,225 tokens.
Download SKILL.mdSave it as
.claude/skills/bkend-data/SKILL.md (or your agent's skills folder).- name
- bkend-data
- description
- bkend.ai database — CRUD, column types, filtering, sorting, relations, indexing. Triggers: bkend table, bkend CRUD, bkend column, bkend relation, bkend data
- allowed-tools
- Read, Write, Edit, Glob, Grep, Bash, mcp__bkend__*
- classification
- capability
- classification-reason
- Pattern guidance may overlap with model's built-in knowledge as it improves
- deprecation-risk
- medium
- effort
- medium
- user-invocable
- false
- agent
- bkit:bkend-expert
- imports
- ${PLUGIN_ROOT}/templates/shared/bkend-patterns.md
bkend.ai Database Guide
Column Types (7)
| Type | Description | Example |
|---|---|---|
| String | Text | name, email |
| Number | Numeric | age, price |
| Boolean | True/false | isActive |
| Date | Date/time | birthDate |
| Array | Array | tags: ["a","b"] |
| Object | Nested object | address: {city, zip} |
| Mixed | Any type | metadata |
Constraints
required: Field must have a valueunique: No duplicate values alloweddefault: Default value when not provided
Auto System Fields
| Field | Type | Description |
|---|---|---|
| id | String | Auto-generated unique ID |
| createdBy | String | Creator user ID |
| createdAt | Date | Creation timestamp |
| updatedAt | Date | Last update timestamp |
Important: bkend uses id (NOT _id) in all API responses.
MCP Table Management Tools
| Tool | Purpose | Scope |
|---|---|---|
backend_table_create | Create table | table:create |
backend_table_list | List tables | table:read |
backend_table_get | Get table detail + schema | table:read |
backend_table_delete | Delete table | table:delete |
backend_field_manage | Add/modify/delete fields | table:update |
backend_index_manage | Manage indexes | table:update |
backend_schema_version_list | Schema version history | table:read |
backend_schema_version_get | Schema version detail | table:read |
backend_schema_version_apply | Apply schema version (rollback) | table:update |
backend_index_version_list | Index version history | table:read |
backend_index_version_get | Index version detail | table:read |
MCP Data CRUD Tools
| Tool | Purpose | Key Parameters |
|---|---|---|
backend_data_list | List records (filter, sort, paginate) | tableId, page?, limit?, sortBy?, sortDirection?, andFilters?, orFilters? |
backend_data_get | Get single record | tableId, recordId |
backend_data_create | Create record | tableId, data: { field: value } |
backend_data_update | Partial update record | tableId, recordId, data: { field: value } |
backend_data_delete | Delete record | tableId, recordId |
All Data CRUD tools require: organizationId, projectId, environmentId (from get_context).
Filter Operators
| Operator | Meaning | Example |
|---|---|---|
$eq | Equal | { "status": { "$eq": "active" } } |
$ne | Not equal | { "role": { "$ne": "admin" } } |
$gt / $gte | Greater than / >= | { "age": { "$gt": 18 } } |
$lt / $lte | Less than / <= | { "price": { "$lt": 100 } } |
$in / $nin | In / Not in array | { "tag": { "$in": ["a","b"] } } |
Show full SKILL.md (137 more words)Show less
MCP Guide Docs (via search_docs)
Use search_docs tool to access these guides:
| Doc ID | Content |
|---|---|
4_howto_implement_data_crud | CRUD implementation patterns |
7_code_examples_data | CRUD + file upload code examples |
Use get_operation_schema to get any tool's input/output schema.
REST Data API
| Method | Endpoint | Description |
|---|---|---|
| GET | /v1/data/{table} | List (filter, sort, page, limit) |
| POST | /v1/data/{table} | Create |
| GET | /v1/data/{table}/{id} | Get single |
| PATCH | /v1/data/{table}/{id} | Partial update |
| DELETE | /v1/data/{table}/{id} | Delete |
Filtering
- Text search:
?search=keyword - AND filter:
?filter[field1]=value1&filter[field2]=value2 - Comparison operators:
$eq,$ne,$gt,$gte,$lt,$lte,$in,$nin - Sort:
?sort=field:asc(or desc) - Pagination:
?page=1&limit=20(default 20, max 100)
Relations & Joins
- Configure table relationships
- Join queries for related data retrieval
Index Management
- Single/compound index creation
- Manage via MCP
backend_index_manage - Essential for query performance optimization
Official Documentation (Live Reference)
For the latest database documentation, use WebFetch:
- MCP Data Tools: https://raw.githubusercontent.com/ww-w-ai/bkend-docs/main/en/mcp/05-data-tools.md
- MCP Table Tools: https://raw.githubusercontent.com/ww-w-ai/bkend-docs/main/en/mcp/04-table-tools.md
- Database Guide: https://raw.githubusercontent.com/ww-w-ai/bkend-docs/main/en/database/01-overview.md
- Full TOC: https://raw.githubusercontent.com/ww-w-ai/bkend-docs/main/SUMMARY.md
© ww-w-ai, Apache-2.0. 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 skills/bkend-data of ww-w-ai/bkit-claude-code.
Open the folder on GitHubat commit 85b4913
Compare with similar skills
Bkend Data 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 |
|---|---|---|---|---|---|---|
| Bkend Data this skillww-w-ai/bkit-claude-code | 601 | — | ~1.2k | Automated safety check: Notes | Apache-2.0 | |
| MCP Server Builderanthropics/skills | 180k | 63 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 | |
| Figma use_figma Plugin API Ruleswarpdotdev/warp | 65k | 4 repos | ~4.4k | Automated safety check: Pass | AGPL-3.0 | |
| Stitch to Remotion Walkthrough Videosgoogle-labs-code/stitch-skills | 8.4k | 6 repos | ~3.2k | Automated safety check: Notes | Apache-2.0 |
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Works with
Questions about Bkend Data
What does Bkend Data do?
bkend.ai database — CRUD, column types, filtering, sorting, relations, indexing. Bkend Data is an agent skill from ww-w-ai/bkit-claude-code.ai database — CRUD, column types, filtering, sorting, relations, indexing.
How do I install Bkend Data in Claude Code?
Run `npx skills add ww-w-ai/bkit-claude-code --skill bkend-data -a claude-code`. Or copy the skill folder (skills/bkend-data in ww-w-ai/bkit-claude-code) into .claude/skills/bkend-data in your project. Claude Code loads it when a task matches its description.
How do I install Bkend Data in Codex?
Run `npx skills add ww-w-ai/bkit-claude-code --skill bkend-data -a codex`. Or copy the skill folder (skills/bkend-data in ww-w-ai/bkit-claude-code) into .agents/skills/bkend-data in your project. Codex loads it when a task matches its description.
Can I use Bkend Data 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 ww-w-ai/bkit-claude-code --skill bkend-data -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bkend-data, .gemini/skills/bkend-data, .github/skills/bkend-data and .opencode/skills/bkend-data in your project.
What does Bkend Data need to run?
SKILL.md names no scripts, command-line tools or credentials: Bkend Data is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash, mcp__bkend__*.
Does Bkend Data access the network?
SKILL.md names 1 domain. As links in the text: raw.githubusercontent.com. This is read from the text; nothing was executed.
Is Bkend Data safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Bkend Data use?
Bkend Data is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Bkend Data use?
About 1.2k tokens (SKILL.md is roughly 4.9k 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 Bkend Data?
Skills that share tags, products or a category with Bkend Data: 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 Figma use_figma Plugin API Rules (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Bkend Data?
ww-w-ai (a GitHub organization) maintains it in ww-w-ai/bkit-claude-code, which has 601 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on September 27, 2026.
Source: ww-w-ai/bkit-claude-code on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.