Supabase Postgres Best Practices
supabase/agent-skills
Gives the agent Postgres rules to consult before writing or changing tables, queries, indexes, RLS policies or migrations, and when diagnosing slow queries.
Operations manual for the CrossBeam ADU Permit Assistant. An agent skill from mikeOnBreeze/cc-crossbeam.
MITAuto-check passed
Install Crossbeam Ops
$ npx skills add mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mikeOnBreeze/cc-crossbeam crossbeam-ops --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/mikeOnBreeze/cc-crossbeam.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/crossbeam-ops .claude/skills/crossbeam-ops && 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 "crossbeam-ops" agent skill from https://github.com/mikeOnBreeze/cc-crossbeam/tree/main/.claude/skills/crossbeam-ops into .claude/skills/crossbeam-ops/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crossbeam-ops", 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/mikeOnBreeze/cc-crossbeam/tree/main/.claude/skills/crossbeam-opsType 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 mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mikeOnBreeze/cc-crossbeam crossbeam-ops --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mikeOnBreeze/cc-crossbeam.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/crossbeam-ops .agents/skills/crossbeam-ops && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "crossbeam-ops" agent skill from https://github.com/mikeOnBreeze/cc-crossbeam/tree/main/.claude/skills/crossbeam-ops into .agents/skills/crossbeam-ops/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crossbeam-ops", 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 mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mikeOnBreeze/cc-crossbeam crossbeam-ops --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mikeOnBreeze/cc-crossbeam.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/crossbeam-ops .cursor/skills/crossbeam-ops && 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 "crossbeam-ops" agent skill from https://github.com/mikeOnBreeze/cc-crossbeam/tree/main/.claude/skills/crossbeam-ops into .cursor/skills/crossbeam-ops/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crossbeam-ops", 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/mikeOnBreeze/cc-crossbeam.git --path .claude/skills/crossbeam-ops--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 mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mikeOnBreeze/cc-crossbeam crossbeam-ops --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mikeOnBreeze/cc-crossbeam.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/crossbeam-ops .gemini/skills/crossbeam-ops && 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 "crossbeam-ops" agent skill from https://github.com/mikeOnBreeze/cc-crossbeam/tree/main/.claude/skills/crossbeam-ops into .gemini/skills/crossbeam-ops/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crossbeam-ops", 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 mikeOnBreeze/cc-crossbeam crossbeam-opsInstalls 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 mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mikeOnBreeze/cc-crossbeam.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/crossbeam-ops .github/skills/crossbeam-ops && 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 "crossbeam-ops" agent skill from https://github.com/mikeOnBreeze/cc-crossbeam/tree/main/.claude/skills/crossbeam-ops into .github/skills/crossbeam-ops/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crossbeam-ops", 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 mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mikeOnBreeze/cc-crossbeam crossbeam-ops --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mikeOnBreeze/cc-crossbeam.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/crossbeam-ops .opencode/skills/crossbeam-ops && 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 "crossbeam-ops" agent skill from https://github.com/mikeOnBreeze/cc-crossbeam/tree/main/.claude/skills/crossbeam-ops into .opencode/skills/crossbeam-ops/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crossbeam-ops", 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
crossbeam-ops- GitHub stars
- 293
- Token cost
- ~534 tokens
- SKILL.md length
- 109 words
- Files
- 7 (incl. references)
- Skills in repo
- 20
- Repo updated
- First seen
- Licence
- MIT
At a glance
Operations manual for the CrossBeam ADU Permit Assistant. An agent skill from mikeOnBreeze/cc-crossbeam.
- Navigate the UI
- SKILL.md covers Decision Tree Router, Quick Reference and Fastest Path: Run a Full Test
- Calls curl and jq; reaches cc-crossbeam.vercel.app; needs CROSSBEAM_API_KEY
- Query the database
What it does
Crossbeam Ops is an agent skill from mikeOnBreeze/cc-crossbeam. Operations manual for the CrossBeam ADU Permit Assistant. Teaches AI agents how to operate the deployed system — trigger flows, check status, read results, navigate the UI, and query the database.
Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `CLAUDE.md`, `references/api-endpoints.md` and `references/data-model.md`).
It works with Supabase. The repository describes itself as: CrossBeam Permits — AI-assisted building-permit plan review for cities and builders. The licence is MIT.
When your agent uses it
- Navigate the UI
- Query the database
Example prompts
- “Use the crossbeam-ops skill to operation manual for the CrossBeam ADU Permit Assistant. An agent skill from mikeOnBreeze/cc-crossbeam”
- “/crossbeam-ops”
Requirements
- A credential in CROSSBEAM_API_KEY
What it can do on your machine
Read from SKILL.md and the folder at commit cc5591e. 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
Shell commands in SKILL.md call:
curljq
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
cc-crossbeam.vercel.app
Also links to:
crossbeam-server-v7eqq3533a-uc.a.run.appbhjrpklzqyrelnhexhlj.supabase.co
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
CROSSBEAM_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Crossbeam Ops loads about 534 tokens when it runs, and up to ~6.8k if it reads all its reference files. Until then it costs about 53 tokens; SKILL.md has 109 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 mikeOnBreeze/cc-crossbeam at commit cc5591e, republished under its MIT licence (© mikeOnBreeze). 109 words, ~534 tokens.
Download SKILL.mdSave it as
.claude/skills/crossbeam-ops/SKILL.md (or your agent's skills folder). This skill also uses 6 other files; get the full folder from GitHub.- name
- crossbeam-ops
- description
- Operations manual for the CrossBeam ADU Permit Assistant. Teaches AI agents how to operate the deployed system — trigger flows, check status, read results, navigate the UI, and query the database.
- version
- 1.0
CrossBeam Operations Manual
This skill teaches you how to operate the CrossBeam system programmatically and via browser.
Decision Tree Router
| What you want to do | Load these references |
|---|---|
| Trigger a flow, check results, or reset via API | references/api-endpoints.md |
| Query the database directly (Supabase MCP or SQL) | references/data-model.md |
| Understand what each flow does and its phases | references/flows.md |
| Navigate the UI via Chrome browser | references/ui-navigation.md |
| Work with demo/test projects | references/demo-projects.md |
Quick Reference
| Item | Value |
|---|---|
| Vercel URL | https://cc-crossbeam.vercel.app |
| Cloud Run URL | https://crossbeam-server-v7eqq3533a-uc.a.run.app |
| Supabase Project ID | bhjrpklzqyrelnhexhlj |
| Supabase URL | https://bhjrpklzqyrelnhexhlj.supabase.co |
| Auth method | Authorization: Bearer $CROSSBEAM_API_KEY |
| Judge Contractor Project | b0000000-0000-0000-0000-000000000002 |
| Judge City Project | b0000000-0000-0000-0000-000000000001 |
| Schema | crossbeam (not public) |
Fastest Path: Run a Full Test
# 1. Reset the demo project
curl -X POST https://cc-crossbeam.vercel.app/api/reset-project \
-H "Authorization: Bearer $CROSSBEAM_API_KEY" \
-H "Content-Type: application/json" \
-d '{"project_id":"b0000000-0000-0000-0000-000000000002"}'
# 2. Trigger corrections analysis
curl -X POST https://cc-crossbeam.vercel.app/api/generate \
-H "Authorization: Bearer $CROSSBEAM_API_KEY" \
-H "Content-Type: application/json" \
-d '{"project_id":"b0000000-0000-0000-0000-000000000002","flow_type":"corrections-analysis"}'
# 3. Poll until done (check project.status)
curl -s https://cc-crossbeam.vercel.app/api/projects/b0000000-0000-0000-0000-000000000002 \
-H "Authorization: Bearer $CROSSBEAM_API_KEY" | jq '.project.status'© mikeOnBreeze, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 6 other files (references) in .claude/skills/crossbeam-ops of mikeOnBreeze/cc-crossbeam.
- SKILL.md
- CLAUDE.md
- references/api-endpoints.md
- references/data-model.md
- references/demo-projects.md
- references/flows.md
- references/ui-navigation.md
Open the folder on GitHubat commit cc5591e
Compare with similar skills
Crossbeam Ops 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 |
|---|---|---|---|---|---|---|
| Crossbeam Ops this skillmikeOnBreeze/cc-crossbeam | 293 | — | ~534 | Automated safety check: Pass | MIT | |
| Supabase Postgres Best Practicessupabase/agent-skills | 2.7k | 24 repos | ~808 | Automated safety check: Pass | MIT | |
| Supabase Development and Debuggingsupabase/agent-skills | 2.7k | 3 repos | ~3.6k | Automated safety check: Pass | MIT | |
| Clickhouse Logs Queriessupabase/supabase | 111k | — | ~2.4k | Automated safety check: Pass | Apache-2.0 | |
| Security Reviewjewbetcha/opentrace | 116 | 18 repos | ~3.1k | Automated safety check: Notes | MIT | |
| Review The Docssupabase/supabase | 111k | — | ~4.6k | Automated safety check: Pass | Apache-2.0 |
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Related
Works with
Questions about Crossbeam Ops
What does Crossbeam Ops do?
Operations manual for the CrossBeam ADU Permit Assistant. An agent skill from mikeOnBreeze/cc-crossbeam. Crossbeam Ops is an agent skill from mikeOnBreeze/cc-crossbeam. Operations manual for the CrossBeam ADU Permit Assistant.
When should I use Crossbeam Ops?
Crossbeam Ops fits situations like: navigate the UI; query the database.
How do I install Crossbeam Ops in Claude Code?
Run `npx skills add mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a claude-code`. Or copy the skill folder (.claude/skills/crossbeam-ops in mikeOnBreeze/cc-crossbeam) into .claude/skills/crossbeam-ops in your project. Claude Code loads it when a task matches its description.
How do I install Crossbeam Ops in Codex?
Run `npx skills add mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a codex`. Or copy the skill folder (.claude/skills/crossbeam-ops in mikeOnBreeze/cc-crossbeam) into .agents/skills/crossbeam-ops in your project. Codex loads it when a task matches its description.
Can I use Crossbeam Ops 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 mikeOnBreeze/cc-crossbeam --skill crossbeam-ops -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/crossbeam-ops, .gemini/skills/crossbeam-ops, .github/skills/crossbeam-ops and .opencode/skills/crossbeam-ops in your project.
What does Crossbeam Ops need to run?
Going by SKILL.md and its folder, Crossbeam Ops needs the command-line tools its instructions call (curl and jq) and credentials named CROSSBEAM_API_KEY. Our summary lists: A credential in CROSSBEAM_API_KEY.
Does Crossbeam Ops access the network?
SKILL.md names 3 domains. In commands or code: cc-crossbeam.vercel.app; the agent is likely to contact it when it follows the instructions. As links in the text: crossbeam-server-v7eqq3533a-uc.a.run.app and bhjrpklzqyrelnhexhlj.supabase.co. This is read from the text; nothing was executed.
Is Crossbeam Ops 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 Crossbeam Ops use?
Crossbeam Ops is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Crossbeam Ops use?
About 534 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6.3k tokens, read only when the agent opens those files.
What are the alternatives to Crossbeam Ops?
Skills that share tags, products or a category with Crossbeam Ops: Supabase Postgres Best Practices (supabase/agent-skills, 2.7k stars), Supabase Development and Debugging (supabase/agent-skills, 2.7k stars), Clickhouse Logs Queries (supabase/supabase, 111k stars) and Security Review (jewbetcha/opentrace, 116 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Crossbeam Ops?
mikeOnBreeze (a GitHub user) maintains it in mikeOnBreeze/cc-crossbeam, which has 293 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on March 2, 2026.
Source: mikeOnBreeze/cc-crossbeam on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.