Cortex Run
SnowflakeOfficialCreated by Snowflake
- Skill
- Tool integration
- Software development
- Apache-2.0
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AutoGineer summary
Written by AutoGineer from the skill’s own files, not by the author
The cortex-run skill provides a dedicated interface for users to manually trigger the Snowflake Cortex Code CLI. By bypassing automatic routing, this skill allows for precise control over Snowflake operations, including data exploration, schema management, and DDL execution. It includes a robust security envelope system to manage permissions for read-only, read-write, research, and deployment tasks, while supporting multi-turn session persistence via resume functionality.
What it does
- Verifies the presence of the Cortex Code CLI before execution.
- Routes user prompts directly to the Cortex Code execution environment.
- Applies security envelopes (RO, RW, RESEARCH, DEPLOY) to restrict command capabilities.
- Supports session continuity using the resume-last flag for multi-turn interactions.
- Enriches prompts with relevant conversation context for better model performance.
- Formats and presents SQL results, errors, and artifacts to the user.
When to use it
- When you need to explicitly invoke Cortex Code functionality.
- When performing specific Snowflake database operations like querying or schema modifications.
- When you need to continue a previous Cortex Code session to maintain context.
- When you want to override automatic routing for a specific task.
Advantages
- Bypasses auto-routing to ensure the correct tool is used for the task.
- Provides granular security control through configurable execution envelopes.
- Maintains conversation state across multiple turns for complex workflows.
- Ensures the environment is correctly configured before attempting execution.
Usage examples
- “$cortex-run list all tables in the sales_data schema”
- The agent verifies the CLI, applies the RO (Read-Only) security envelope, and executes the query to list tables in the specified schema.
- “$cortex-run create a new table for monthly reports”
- The agent applies the RW (Read-Write) security envelope and executes the DDL command to create the table in Snowflake.
- “$cortex-run (after a previous query) now show me the column types for that table”
- The agent uses the --resume-last flag to maintain session context and retrieves the column metadata for the table identified in the previous turn.
Install
Download the skill as a ZIP:
https://autogineer.com/agent-skills/snowflake-labs/cortex-run/downloadUnzip it into the cross-client skills folder of your project:
mkdir -p .agents/skills && unzip cortex-run.zip -d .agents/skills
Documentation by Snowflake
Cortex Code (Explicit Invocation)
Send a prompt directly to Cortex Code CLI, bypassing the auto-routing keyword filter. Use this when the user explicitly wants Cortex Code to handle their request.
Prerequisites
Cortex Code CLI must be installed and on PATH:
which cortex && cortex --versionIf cortex is not found, load the snowflake-cortex-code:cortex-setup skill to install it. Do NOT proceed without it.
Workflow
Step 1: Check Cortex CLI
This step is mandatory. Do it first, every time.
which cortex 2>/dev/null && cortex --versionIf cortex is NOT found or the command fails:
Tell the user: "Cortex Code CLI is not installed. Setting it up now."
Load the
snowflake-cortex-code:cortex-setupskill using the Skill tool.Follow its instructions to install the CLI.
STOP here — do NOT proceed to Step 2 until the CLI is installed and working.
Step 2: Extract the User Prompt
The user's message after $cortex-run is the prompt to send. If the user typed only $cortex-run with no additional text, ask what they want to do in Snowflake.
Step 3: Choose Security Envelope
Pick the envelope based on what the operation needs:
| Envelope | Use when | Blocks |
|---|---|---|
| RO | Queries, reads, exploration | Edit, Write, destructive Bash |
| RW | Data modifications, DDL | Destructive Bash (rm -rf, sudo) |
| RESEARCH | Exploration + web access | Edit, Write, destructive Bash |
| DEPLOY | Full access needed | Nothing |
Default to RW unless the request is clearly read-only.
Step 4: Execute via Cortex Code
Run the prompt through the execution script:
Use the shared launcher in Bash (Git Bash on Windows). It prefers python3,
accepts python only if it is Python 3, and never retries a failed script.
On a configuration/policy error, STOP and report it; do not switch interpreters
or bypass the plugin.
bash "${CLAUDE_PLUGIN_ROOT}/scripts/run_python.sh" "${CLAUDE_PLUGIN_ROOT}/scripts/router/execute_cortex.py" \
--prompt "USER_PROMPT_HERE" \
--envelope "RW"For read-only queries:
bash "${CLAUDE_PLUGIN_ROOT}/scripts/run_python.sh" "${CLAUDE_PLUGIN_ROOT}/scripts/router/execute_cortex.py" \
--prompt "USER_PROMPT_HERE" \
--envelope "RO"To specify a Snowflake connection:
bash "${CLAUDE_PLUGIN_ROOT}/scripts/run_python.sh" "${CLAUDE_PLUGIN_ROOT}/scripts/router/execute_cortex.py" \
--prompt "USER_PROMPT_HERE" \
--envelope "RW" \
--connection "connection_name"Step 5: Return Results
Format Cortex's output for the user:
Show SQL results in readable tables
Display generated artifacts
Report success or failure
If Cortex errored, show the error and suggest fixes
Context Enrichment
Before sending the prompt, prepend relevant context from the current Claude Code conversation:
# Context from Claude Code Session
[Last 2-3 relevant exchanges — Snowflake-specific details only]
# User Request
[The original prompt]Keep context minimal — Cortex only sees what you send in each prompt (unless resuming a session).
Multi-turn: --resume-last vs fresh
Every Cortex invocation returns a session_id that is persisted automatically. Follow-up
turns can resume that session so Cortex sees the prior conversation — real multi-turn,
not one-shot batches per prompt.
Add
--resume-lastwhen the current prompt is a continuation of the previous Cortex turn: "keep going", "apply the top suggestion", "dig deeper", "also show me ...", "and for last quarter", "fix that", or any clarification of an answer Cortex just gave.Omit
--resume-last(start fresh) when the user switches topics, asks about a different database/warehouse, or begins a clearly new task.--resume <session_id>is also accepted if you have an explicit id.
# Follow-up on the previous Cortex turn
bash "${CLAUDE_PLUGIN_ROOT}/scripts/run_python.sh" "${CLAUDE_PLUGIN_ROOT}/scripts/router/execute_cortex.py" \
--prompt "also show me the column types" --envelope "RO" \
--resume-lastExamples
User: $cortex-run show me tables in the RAW schema
Envelope: RO
Prompt: "show me tables in the RAW schema"
User: $cortex-run create a dynamic table that aggregates daily sales
Envelope: RW
Prompt: "create a dynamic table that aggregates daily sales"
User: $cortex-run (no prompt)
Ask: "What would you like Cortex Code to do?"
Notes
This skill is for explicit invocation only. Auto-routing is handled separately by the prompt filter hook + cortex-router skill.
Use
--resume-lastfor follow-up prompts so Cortex retains conversation context. For new topics, omit it and include relevant context in the prompt instead.Security envelope enforcement uses
--permission-prompt-tool stdio— every tool call is gated byenvelope_policy.decide()at the process boundary.
Files
- ATTRIBUTION.mdAdded by AutoGineer1019 B
- LICENSELicence file added by AutoGineer11.1 KiB
- SKILL.md5.2 KiB
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Requirements and compatibility
Written for: Claude Code
Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta
“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.
Needs: Claude Code frontmatter, Needs Python
Security
No issues found by our static scan· No issues found
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Attribution and licence
- Created by
- Snowflake
- Publisher
- Snowflake (Official)
- Source
- Snowflake-Labs/snowflake-ai-kit · plugins/cortex-code/skills/cortex-run · commit 6a9165f
- Licence
- Apache License 2.0 (redistribution allowed)
- LICENSE (added by AutoGineer from LICENSE)
- ATTRIBUTION.md (written by AutoGineer)
- Synced
AutoGineer is not affiliated with or endorsed by Snowflake or Snowflake.
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