Agent skill

Add Command

by coralogix in coralogix/cx-cli

A skill your agent uses when the user asks to "add a command", "implement cx <something", "new subcommand", "new CLI command", "add a new cx command", "create a command", "add subcommand"…

Apache-2.0Auto-check passedBackend & APIs

Install Add Command

skills CLI
$ npx skills add coralogix/cx-cli --skill add-command -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install coralogix/cx-cli add-command --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/coralogix/cx-cli.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/add-command .claude/skills/add-command && rm -rf skills-src

Use ~/.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/

Facts

Skill name
add-command
GitHub stars
121
Token cost
~2.4k tokens
SKILL.md length
1,187 words
Files
1
Skills in repo
21
Repo updated
First seen
Licence
Apache-2.0

At a glance

A skill your agent uses when the user asks to "add a command", "implement cx <something", "new subcommand", "new CLI command", "add a new cx command", "create a command", "add subcommand"…

  • Works in 8 steps: Understand What You're Building → Read Reference Implementations → Create API Layer (REST Only) → …
  • The user asks to add a command
  • SKILL.md covers Step 0: Understand What You're…, Step 1: Read Reference…, Step 2: Create API Layer (REST… and Step 3: Create Command Module, plus 4 more sections
  • Calls cargo

What it does

Add Command is an agent skill from coralogix/cx-cli. Use this skill when the user asks to "add a command", "implement cx <something", "new subcommand", "new CLI command", "add a new cx command", "create a command", "add subcommand", "implement a new command", "build a cx command", "wire up a new command", "extend the CLI", "add an API to cx", "new cx feature", "integrate a Coralogix API", or wants to add new functionality to the cx CLI. Use this even when the user describes a feature that implies a new command without saying "command" explicitly.

Its SKILL.md is about 2.4k 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 Backend & APIs. The repository describes itself as: This is the Coralogix CLI. The licence is Apache-2.0.

When your agent uses it

  • The user asks to add a command
  • Implement cx <something
  • New CLI command
  • Add a new cx command

Example prompts

  • “add a command”
  • “implement cx <something”
  • “new subcommand”
  • “/add-command”

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. Understand What You're Building
  2. Read Reference Implementations
  3. Create API Layer (REST Only)
  4. Create Command Module
  5. Wire into CLI
  6. Add Tests
  7. Create User-Facing Skill
  8. Verify

What it can do on your machine

Read from SKILL.md and the folder at commit c071372. 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:

    • cargo

    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

Add Command loads about 2.4k tokens when it runs. Until then it costs about 128 tokens; SKILL.md has 1,187 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~128
When it runs · the whole SKILL.md, loaded when a task matches
~2.4k

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 coralogix/cx-cli at commit c071372, republished under its Apache-2.0 licence (© coralogix). 1,187 words, ~2,449 tokens.

Download SKILL.mdSave it as .claude/skills/add-command/SKILL.md (or your agent's skills folder).
name
add-command
description
Use this skill when the user asks to "add a command", "implement cx <something>", "new subcommand", "new CLI command", "add a new cx command", "create a command", "add subcommand", "implement a new command", "build a cx command", "wire up a new command", "extend the CLI", "add an API to cx", "new cx feature", "integrate a Coralogix API", or wants to add new functionality to the cx CLI. Use this even when the user describes a feature that implies a new command without saying "command" explicitly.
version
0.1.0
metadata.internal
true

Add a CLI Command

End-to-end workflow for adding a new command to cx. Every command falls into one of two archetypes - determine which one first, then follow the corresponding steps.

docs/adding-a-command.md has copy-pasteable code templates for every step below. Read it alongside this workflow.

Step 0: Understand What You're Building

Before writing any code, get clarity on the domain:

  1. What Coralogix API are you wrapping? Find the API docs or example responses. Understand the data model - what entities exist, what fields they have, what operations are supported.
  2. What should the user be able to do? List the subcommands (e.g., list, get, create) and what flags make sense.
  3. Does this belong under a wrapper group? The CLI organizes related commands into wrapper groups. Check if your command fits under an existing group before creating a top-level command:
    • cx alerts - alert definitions + schedulers
    • cx notifications - connectors, routers, presets, test
    • cx webhooks - outgoing webhooks + actions
    • cx enrichments - enrichment rules + custom enrichment tables
    • cx integrations - integrations + extensions, contextual-data
    • cx iam - api-keys, roles, scopes, users, groups, ip-access Run cx schema to see the full command tree as JSON.
  4. Which archetype fits?
ArchetypeWhen to useReference implementation
A: DataPrime-basedQuerying logs, spans, or any DataPrime sourcesrc/commands/logs/mod.rs
B: REST-basedWrapping a Coralogix REST API (most new commands)src/commands/alerts/api.rs + src/commands/alerts/mod.rs

DataPrime commands delegate to a shared pipeline and require minimal code (~130 lines). REST commands build the full pipeline (API client, fan-out, merge, render) - more code but more control.

Important: All API integrations must use REST (HTTP). The CLI is HTTP-only by design - do not use gRPC.

Step 1: Read Reference Implementations

Before writing any code, read these files to internalize the existing patterns. This step is critical - agents that read existing code first produce implementations that are consistent with the codebase rather than inventing new patterns.

Always read:

  • src/main.rs - study the Commands enum to see how variants are structured, and the match cli.command dispatch block to see where your new variant fits. Note which commands early-exit (no credentials needed) vs which go through the full config resolution flow. Pay attention to wrapper groups (e.g., Notifications, Iam, Webhooks, Integrations) - these are top-level commands with nested subcommand enums that group related domains. If your command belongs under an existing group, add a new variant to that group's subcommand enum rather than creating a top-level command.
  • src/commands/mod.rs - see existing module registrations so you add yours in the right place
  • docs/adding-a-command.md - full guide with code templates for both archetypes

DataPrime archetype - also read:

  • src/commands/logs/mod.rs - a complete DataPrime command; notice how little code is needed because the shared pipeline does the heavy lifting
  • src/commands/dataprime/mod.rs - the shared pipeline your command will delegate to; understand the run_query() signature and what it handles (fan-out, merge, spilling, agents output)

REST archetype - also read:

  • src/commands/alerts/api.rs - see how response types are structured, how the API struct borrows &CxClient, how deserialization tests are written
  • src/commands/alerts/mod.rs - see how the handler declares pub mod api; and imports types via use api::{...};
  • src/commands/dashboards/mod.rs - see the fan-out/merge/render pattern using render::* helpers, and how all three output formats are handled

Step 2: Create API Layer (REST Only)

Skip this step for DataPrime commands - they use the shared DataPrime pipeline.

Create src/commands/<domain>/api.rs. See docs/adding-a-command.md § "Archetype B, Step 1" for the full template.

Key conventions and why they matter:

  • #[serde(rename_all = "camelCase")] on response types - Coralogix APIs use camelCase JSON keys
  • #[serde(default)] on Vec fields - the API sometimes omits empty arrays entirely rather than sending [], so this prevents deserialization failures
  • Option<T> for fields that may be absent - be defensive, APIs evolve and fields vary across tiers
  • API struct borrows &CxClient (don't own it) - the client is shared across the fan-out and must outlive individual API calls
  • const BASE_PATH for the endpoint prefix - keeps URLs DRY
  • Deserialization tests are mandatory - test both happy-path and edge cases (empty lists, missing optional fields) since these are the cases that break in production

Step 3: Create Command Module

Create src/commands/<domain>/mod.rs. For REST commands, declare pub mod api; at the top so the handler can use api::{...}; types from its sibling api.rs. See docs/adding-a-command.md for full templates of both archetypes.

DataPrime archetype

Provide two things:

  1. A text renderer: pub fn render_<domain>_text(merged: &MergedResults) -> Result<()> - called only for OutputFormat::Text; JSON and Agents output are handled by the shared pipeline
  2. A thin run() wrapper that calls super::dataprime::run_query() with your DataPrime source name
Show full SKILL.md (462 more words)Show less
REST archetype

Build the full fan-out/merge/render pipeline. Key patterns to understand:

  • render::render_table for text output - pass column headers (without "Profile") and rows where the first element is the profile name. The helper conditionally includes the Profile column based on include_profile. No duplicate struct definitions needed.
  • render::render_json for JSON output - pretty-prints a &[Value] array
  • let include_profile = targets.len() > 1; - this single boolean controls all multi-profile behavior (Profile column in text, "profile" key in JSON)
  • Fan-out errors are non-fatal - print to stderr and continue, because one misconfigured profile shouldn't block results from others
  • Status messages go to stderr (eprintln!) - stdout is reserved for data so piped output isn't polluted
  • Agents output is command-owned - each command calls toon_encode directly after any post-processing, because different commands may transform data differently before encoding

Register the module in src/commands/mod.rs.

Step 4: Wire into CLI

In src/main.rs, add three things. See docs/adding-a-command.md § "CLI Wiring" for templates.

  1. Commands enum variant - DataPrime commands use inline args; REST commands reference a subcommand enum
  2. Subcommand enum (REST only) - defines List, Get, etc.
  3. Dispatch match arm - inside the match cli.command block. Most commands go through the full config resolution flow; only commands that don't need credentials (like profiles, cleanup) early-exit.

Step 5: Add Tests

Every new command must add tests at three layers. See docs/adding-a-command.md § "Testing" for code templates and examples of each.

LayerLocationWhat it verifies
Unitsrc/**/<file>.rs #[cfg(test)]Pure logic - deserialization (mandatory for REST), helpers, transforms
Integrationtests/<command>/main.rs (wiremock)Command runner end-to-end with mocked HTTP
E2Etests/e2e/<command>/mod.rs (assert_cmd, #[ignore]d)Real cx binary against the Coralogix test team

Things specific to this workflow that the doc doesn't emphasise:

  • Don't add e2e for mutating commands (create/delete/enable/disable) unless there's a paired-undo plan - they touch shared test team state. Mark them as deliberately uncovered with a comment, like tests/e2e/alerts/mod.rs.
  • If a subcommand needs an ID from the test team (e.g. get <id>), add a local discover_* fn in your e2e test module, modelled after discover_alert_id in tests/e2e/alerts/mod.rs. Cache via OnceLock and skip gracefully when the test team has no data - don't panic.
  • Don't forget to declare the new e2e module in tests/e2e.rs via #[path = "e2e/your_domain/mod.rs"] mod your_domain;.

Step 6: Create User-Facing Skill

Every command needs a corresponding skill in skills/ so AI agents know how to use it. Use the add-skill workflow to create it - it walks through the full process including reading reference implementations, writing effective trigger descriptions, and verification.

Step 7: Verify

Run cargo build, cargo test (unit + integration), cargo clippy, and cargo fmt --check. Fix any issues before committing.

If you have test team credentials configured, also run the e2e suite:

bash
cargo test --test e2e -- --ignored --test-threads=1

Smoke test all three output formats (text, json, agents) and multi-profile (-p profile1 -p profile2).

See docs/adding-a-command.md § "PR Checklist" for the full checklist to include in your PR description.

© coralogix, 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 .claude/skills/add-command of coralogix/cx-cli.

Open the folder on GitHubat commit c071372

Compare with similar skills

Add Command 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.

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Sub2API AdminWei-Shaw/sub2api43k1 repos~717Automated safety check: PassLGPL-3.0
Firecrawl Build Onboardingfirecrawl/firecrawl190k1 repos~1.4kAutomated safety check: NotesISC
Obsidian BasesAtmosphere/atmosphere3.8k22 repos~3.2kAutomated safety check: PassApache-2.0

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Categories

Questions about Add Command

What does Add Command do?

A skill your agent uses when the user asks to "add a command", "implement cx <something", "new subcommand", "new CLI command", "add a new cx command", "create a command", "add subcommand"…. Add Command is an agent skill from coralogix/cx-cli. Use this skill when the user asks to "add a command", "implement cx <something", "new subcommand", "new CLI command", "add a new cx command", "create a command", "add subcommand", "implement a new command", "build a cx command", "wire up a new command", "extend the CLI", "add an API to cx", "new cx feature", "integrate a Coralogix API", or wants to add new functionality to the cx CLI.

When should I use Add Command?

Add Command fits situations like: the user asks to add a command; implement cx <something; new CLI command; add a new cx command.

How do I install Add Command in Claude Code?

Run `npx skills add coralogix/cx-cli --skill add-command -a claude-code`. Or copy the skill folder (.claude/skills/add-command in coralogix/cx-cli) into .claude/skills/add-command in your project. Claude Code loads it when a task matches its description.

How do I install Add Command in Codex?

Run `npx skills add coralogix/cx-cli --skill add-command -a codex`. Or copy the skill folder (.claude/skills/add-command in coralogix/cx-cli) into .agents/skills/add-command in your project. Codex loads it when a task matches its description.

Can I use Add Command 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 coralogix/cx-cli --skill add-command -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-command, .gemini/skills/add-command, .github/skills/add-command and .opencode/skills/add-command in your project.

What does Add Command need to run?

Going by SKILL.md and its folder, Add Command needs the command-line tools its instructions call (cargo).

Does Add Command 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 Add Command 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 Add Command use?

Add Command 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 Add Command use?

About 2.4k tokens (SKILL.md is roughly 9.8k 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 Add Command?

Skills that share tags, products or a category with Add Command: Configuring Horizon (coollabsio/coolify, 63k stars), Nestjs Best Practices (rolling-scopes/rsschool-app, 10k stars), Sub2API Admin (Wei-Shaw/sub2api, 43k stars) and Firecrawl Build Onboarding (firecrawl/firecrawl, 190k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Add Command?

coralogix (a GitHub organization) maintains it in coralogix/cx-cli, which has 121 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on October 7, 2026.

Source: coralogix/cx-cli on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.