consult

Cross-tool AI consultation: query another AI CLI tool and return the response.

When to Use

Invoke this skill when:

• User wants a second opinion from a different AI tool
• User asks to consult, ask, or cross-check with gemini/codex/claude/opencode/copilot
• User needs to compare responses across AI tools
• User wants to validate a decision with an external AI

Arguments

Parse from $ARGUMENTS:

Flag	Values	Default	Description
--tool	gemini, codex, claude, opencode, copilot	(picker)	Target tool
--effort	low, medium, high, max	medium	Thinking effort level
--model	any model name	(from effort)	Override model selection
--context	diff, file=PATH, none	none	Auto-include context
--continue	(flag) or SESSION_ID	false	Resume previous session

Question text is everything in $ARGUMENTS except the flags above.

Provider Configurations

Claude

Command: claude -p "QUESTION" --output-format json --model "MODEL" --max-turns TURNS --allowedTools "Read,Glob,Grep"
Session resume: --resume "SESSION_ID"

Models: claude-haiku-4-5, claude-sonnet-4-6, claude-opus-4-6

Effort	Model	Max Turns
low	claude-haiku-4-5	1
medium	claude-sonnet-4-6	3
high	claude-opus-4-6	5
max	claude-opus-4-6	10

Parse output: JSON.parse(stdout).result Session ID: JSON.parse(stdout).session_id Continuable: Yes

Gemini

Command: gemini -p "QUESTION" --output-format json -m "MODEL"
Session resume: --resume "SESSION_ID"

Models: gemini-2.5-flash, gemini-2.5-pro, gemini-3-flash-preview, gemini-3-pro-preview, gemini-3.1-pro-preview

Effort	Model
low	gemini-3-flash-preview
medium	gemini-3-flash-preview
high	gemini-3.1-pro-preview
max	gemini-3.1-pro-preview

Parse output: JSON.parse(stdout).response Session ID: JSON.parse(stdout).session_id Continuable: Yes (via --resume)

Codex

Command: codex exec "QUESTION" --json -m "MODEL" -c model_reasoning_effort="LEVEL"
Session resume: codex exec resume SESSION_ID "QUESTION" --json
Session resume (latest): codex exec resume --last "QUESTION" --json

Note: codex exec is the non-interactive/headless mode. There is no -q flag. The TUI mode is codex (no subcommand).

Models: gpt-5.3-codex

Effort	Model	Reasoning
low	gpt-5.3-codex	low
medium	gpt-5.3-codex	medium
high	gpt-5.3-codex	high
max	gpt-5.3-codex	high

Parse output: JSON.parse(stdout).message or raw text Session ID: Codex prints a resume hint at session end (e.g., codex resume SESSION_ID). Extract the session ID from stdout or from JSON.parse(stdout).session_id if available. Continuable: Yes. Sessions are stored as JSONL rollout files at ~/.codex/sessions/. Non-interactive resume uses codex exec resume SESSION_ID "follow-up prompt" --json. Use --last instead of a session ID to resume the most recent session.

OpenCode

Command: opencode run "QUESTION" --format json --model "MODEL" --variant "VARIANT"
Session resume: opencode run "QUESTION" --format json --model "MODEL" --variant "VARIANT" --continue (most recent) or --session "SESSION_ID"
With thinking: add --thinking flag

Models: 75+ via providers (format: provider/model). Top picks: claude-sonnet-4-6, claude-opus-4-6, gpt-5.3-codex, gemini-3.1-pro-preview, minimax-m2.1

Effort	Model	Variant
low	(user-selected or default)	low
medium	(user-selected or default)	medium
high	(user-selected or default)	high
max	(user-selected or default)	high + --thinking

Parse output: Parse JSON events from stdout, extract final text response Session ID: Extract from JSON output if available, or use --continue to auto-resume the most recent session. Continuable: Yes (via --continue or --session). Sessions are stored in a SQLite database in the OpenCode data directory. Use --session SESSION_ID for a specific session, or --continue for the most recent.

Copilot

Command: copilot -p "QUESTION"

Models: claude-sonnet-4-6 (default), claude-opus-4-6, claude-haiku-4-5, gpt-5

Effort	Notes
all	No effort control available. Model selectable via --model flag.

Parse output: Raw text from stdout Continuable: No

Input Validation

Before building commands, validate all user-provided arguments:

• --tool: MUST be one of: gemini, codex, claude, opencode, copilot. Reject all other values.
• --effort: MUST be one of: low, medium, high, max. Default to medium.
• --model: Allow any string, but quote it in the command.
• --context=file=PATH: MUST resolve within the project directory. Reject absolute paths outside cwd. Additional checks:
  1. Block UNC paths (Windows): Reject paths starting with \\ or // (network shares)
  2. Resolve canonical path: Use the Read tool to read the file (do NOT use shell commands). Before reading, resolve the path: join cwd + PATH, then normalize (collapse ., .., resolve symlinks)
  3. Verify containment: The resolved canonical path MUST start with the current working directory. If it escapes (via .., symlinks, or junction points), reject with: [ERROR] Path escapes project directory: {PATH}
  4. No shell access: Read file content using the Read tool only. Never pass user-provided paths to shell commands (prevents injection via path values)

Command Building

Given the parsed arguments, build the complete CLI command. All user-provided values MUST be quoted in the shell command to prevent injection.

Step 1: Resolve Model

If --model is specified, use it directly. Otherwise, use the effort-based model from the provider table above.

Step 2: Build Command String

Use the command template from the provider's configuration section. Substitute QUESTION, MODEL, TURNS, LEVEL, and VARIANT with resolved values.

If continuing a session:

• Claude or Gemini: append --resume SESSION_ID to the command.
• Codex: use codex exec resume SESSION_ID "QUESTION" --json instead of the standard command. Use --last instead of a session ID for the most recent session.
• OpenCode: append --session SESSION_ID to the command. If no session_id is saved, use --continue instead (resumes most recent session). If OpenCode at max effort: append --thinking.

Step 3: Context Packaging

If --context=diff: Run git diff 2>/dev/null and prepend output to the question. If --context=file=PATH: Read the file using the Read tool and prepend its content to the question.

Step 4: Safe Question Passing

User-provided question text MUST NOT be interpolated into shell command strings. Shell escaping is insufficient -- $(), backticks, and other expansion sequences can execute arbitrary commands even inside double quotes.

Required approach -- pass question via stdin or temp file:

1. Write the question to a temporary file using the Write tool (e.g., {AI_STATE_DIR}/consult/question.tmp)

   Platform state directory:

   • Claude Code: .claude/
   • OpenCode: .opencode/
   • Codex CLI: .codex/

2. Build the command using the temp file as input instead of inline text:

Provider	Safe command pattern
Claude	claude -p - --output-format json --model "MODEL" --max-turns TURNS --allowedTools "Read,Glob,Grep" < "{AI_STATE_DIR}/consult/question.tmp"
Claude (resume)	claude -p - --output-format json --model "MODEL" --max-turns TURNS --allowedTools "Read,Glob,Grep" --resume "SESSION_ID" < "{AI_STATE_DIR}/consult/question.tmp"
Gemini	gemini -p - --output-format json -m "MODEL" < "{AI_STATE_DIR}/consult/question.tmp"
Gemini (resume)	gemini -p - --output-format json -m "MODEL" --resume "SESSION_ID" < "{AI_STATE_DIR}/consult/question.tmp"
Codex	codex exec "$(cat "{AI_STATE_DIR}/consult/question.tmp")" --json -m "MODEL" -c model_reasoning_effort="LEVEL" (Codex exec lacks stdin mode -- cat reads from platform-controlled path, not user input)
Codex (resume)	codex exec resume SESSION_ID "$(cat "{AI_STATE_DIR}/consult/question.tmp")" --json -m "MODEL"
Codex (resume latest)	codex exec resume --last "$(cat "{AI_STATE_DIR}/consult/question.tmp")" --json -m "MODEL"
OpenCode	opencode run - --format json --model "MODEL" --variant "VARIANT" < "{AI_STATE_DIR}/consult/question.tmp"
OpenCode (resume by ID)	opencode run - --format json --model "MODEL" --variant "VARIANT" --session "SESSION_ID" < "{AI_STATE_DIR}/consult/question.tmp"
OpenCode (resume latest)	opencode run - --format json --model "MODEL" --variant "VARIANT" --continue < "{AI_STATE_DIR}/consult/question.tmp"
Copilot	copilot -p - < "{AI_STATE_DIR}/consult/question.tmp"

3. Delete the temp file after the command completes (success or failure). Always clean up to prevent accumulation.

Model and session ID values are controlled strings (from pickers or saved state) and safe to quote directly in the command. Only the question contains arbitrary user text and requires the temp file approach. The temp file path ({AI_STATE_DIR}/consult/question.tmp) uses a platform-controlled directory and fixed filename -- no user input in the path.

Provider Detection

Cross-platform tool detection:

• Windows: where.exe TOOL 2>nul -- returns 0 if found
• Unix: which TOOL 2>/dev/null -- returns 0 if found

Check each tool (claude, gemini, codex, opencode, copilot) and return only the available ones.

Session Management

Save Session

After successful consultation, save to {AI_STATE_DIR}/consult/last-session.json:

{
  "tool": "claude",
  "model": "opus",
  "effort": "high",
  "session_id": "abc-123-def-456",
  "timestamp": "2026-02-10T12:00:00Z",
  "question": "original question text",
  "continuable": true
}

AI_STATE_DIR uses the platform state directory:

• Claude Code: .claude/
• OpenCode: .opencode/
• Codex CLI: .codex/

Load Session

For --continue, read the session file and restore:

• tool (from saved state)
• session_id (for --resume flag)
• model (reuse same model)

If session file not found, warn and proceed as fresh consultation.

Output Sanitization

Before including any consulted tool's response in the output, scan the response text and redact matches for these patterns:

Pattern	Description	Replacement
sk-[a-zA-Z0-9_-]{20,}	Anthropic API keys	[REDACTED_API_KEY]
sk-proj-[a-zA-Z0-9_-]{20,}	OpenAI project keys	[REDACTED_API_KEY]
sk-ant-[a-zA-Z0-9_-]{20,}	Anthropic API keys (ant prefix)	[REDACTED_API_KEY]
AIza[a-zA-Z0-9_-]{30,}	Google API keys	[REDACTED_API_KEY]
ghp_[a-zA-Z0-9]{36,}	GitHub personal access tokens	[REDACTED_TOKEN]
gho_[a-zA-Z0-9]{36,}	GitHub OAuth tokens	[REDACTED_TOKEN]
github_pat_[a-zA-Z0-9_]{20,}	GitHub fine-grained PATs	[REDACTED_TOKEN]
ANTHROPIC_API_KEY=[^\s]+	Key assignment in env output	ANTHROPIC_API_KEY=[REDACTED]
OPENAI_API_KEY=[^\s]+	Key assignment in env output	OPENAI_API_KEY=[REDACTED]
GOOGLE_API_KEY=[^\s]+	Key assignment in env output	GOOGLE_API_KEY=[REDACTED]
GEMINI_API_KEY=[^\s]+	Key assignment in env output	GEMINI_API_KEY=[REDACTED]
AKIA[A-Z0-9]{16}	AWS access keys	[REDACTED_AWS_KEY]
ASIA[A-Z0-9]{16}	AWS session tokens	[REDACTED_AWS_KEY]
Bearer [a-zA-Z0-9_-]{20,}	Authorization headers	Bearer [REDACTED]

Apply redaction to the full response text before inserting into the result JSON. If any redaction occurs, append a note: [WARN] Sensitive tokens were redacted from the response.

Output Format

Return a plain JSON object to stdout (no markers or wrappers):

{
  "tool": "gemini",
  "model": "gemini-3.1-pro-preview",
  "effort": "high",
  "duration_ms": 12300,
  "response": "The AI's response text here...",
  "session_id": "abc-123",
  "continuable": true
}

Install Instructions

When a tool is not found, return these install commands:

Tool	Install
Claude	npm install -g @anthropic-ai/claude-code
Gemini	See https://gemini.google.com/cli for install instructions
Codex	npm install -g @openai/codex
OpenCode	npm install -g opencode-ai or brew install anomalyco/tap/opencode
Copilot	gh extension install github/copilot-cli

Error Handling

Error	Response
Tool not installed	Return install instructions from table above
Tool execution timeout	Return "response": "Timeout after 120s"
JSON parse error	Return raw text as response
Empty output	Return "response": "No output received"
Session file missing	Proceed without session resume
API key missing	Return tool-specific env var instructions

Integration

This skill is invoked by:

• consult-agent for /consult command
• Direct invocation: Skill('consult', '"question" --tool=gemini --effort=high')

Example: Skill('consult', '"Is this approach correct?" --tool=gemini --effort=high --model=gemini-3.1-pro-preview')