Gemini CLI as a trading agent: TSLA breakout draft

Follow this worked strategy

I connected Gemini CLI to the NexusTrade trading API and had it research Tesla and preview a volatility breakout draft with a $1,000 entry above the upper Bollinger band. The agent operated this workflow through NexusTrade's MCP server; it did not build the integration. The preview returns valid with an empty issues list. No historical result is recorded yet, and the first test runs only after the rules are approved.

Follow the full journey

Step 1 of 6

Connect Gemini CLI

Connect Gemini CLI in the intended environment

gemini mcp add --transport http --scope user nexustrade https://nexustrade.io/api/mcp
gemini mcp list

Scroll horizontally to read the full command, or copy it.

With Gemini CLI installed, run the registration command below in your research workspace. Start gemini, enter /mcp auth nexustrade and finish NexusTrade browser sign-in. Use /mcp list to inspect the tools.

What you should see

The result identifies Apple's company filing, filing date and source URL. The connection check makes no account changes.

Inspect the request

Use NexusTrade’s sec_edgar tool with action list_filings, ticker AAPL and limit 1. Report the company, filing form, filing date and source URL from the result. Use only this public read. Do not access portfolios, ingest filings, create resources or make changes. If the tool is unavailable, say so.

Step 2 of 6

Research Tesla

Open the latest company filing and date the brief before testing this price-based idea. The captured Q2 2026 filing covers the period ending June 30, 2026.

Company: Tesla (TSLA)
Filing captured: Q2 2026 10-Q; filed July 23, 2026

What you should see

A dated brief names the instrument, original sources and assumptions that matter to this strategy.

Inspect the request

Research TSLA using sec_edgar list_filings and fundamentals. Report the original filing URL, filing date, period, revenue, operating income and cash flow with units. Separate automotive, energy and financing exposures. Keep the brief research-only.

TSLA volatility breakout entry and exit in the current NexusTrade strategy display — The current rule display renders this validated TSLA draft. Its historical test is pending.

Step 3 of 6

Preview the TSLA rules

Inspect the entry and exit in the native rule display. This candidate uses a $1,000 whole-share entry and a flat-position guard; the exact configuration is available with the copy request.

Execution: $10,000 initial cash; $1,000 entry; whole shares; cash dividends; manual approval

What you should see

The preview returns valid=true and an empty issues list for these rules. Saving later returns your own draft ID.

Inspect the request

Use build_portfolio to preview this exact TSLA volatility breakout configuration. Show the entry, sizing, exits, valid and issues. After I approve the rules, use create_portfolio once to save a new draft, then read it back and retain its returned ID. Keep this candidate separate from published research portfolios. Stop before submitting a paid test or deploying.

{
  "name": "TSLA volatility breakout draft",
  "initialValue": 10000,
  "cash": 10000,
  "buyingPower": 10000,
  "supportsFractionalShares": false,
  "supportsCrypto": false,
  "dividendPolicy": "cash",
  "alertsEnabled": false,
  "strategies": [
    {
      "name": "Enter TSLA",
      "active": true,
      "automaticOrderApproval": false,
      "condition": {
        "type": "And",
        "conditions": [
          {
            "type": "Base",
            "lhs": {
              "type": "Price",
              "targetAsset": {
                "type": "Stock",
                "name": "TSLA",
                "symbol": "TSLA"
              }
            },
            "comparison": "greaterThan",
            "rhs": {
              "type": "BollingerBand",
              "targetAsset": {
                "type": "Stock",
                "name": "TSLA",
                "symbol": "TSLA"
              },
              "window": {
                "length": 20,
                "interval": "Day"
              },
              "numStandardDeviations": 2
            }
          },
          {
            "type": "Base",
            "lhs": {
              "type": "PositionValue",
              "targetAssets": [
                {
                  "type": "Stock",
                  "name": "TSLA",
                  "symbol": "TSLA"
                }
              ]
            },
            "comparison": "equal",
            "rhs": {
              "type": "Value",
              "value": 0
            }
          }
        ]
      },
      "action": {
        "type": "Buy",
        "targetAsset": {
          "type": "Stock",
          "name": "TSLA",
          "symbol": "TSLA"
        },
        "amount": {
          "type": "dollars",
          "amount": 1000
        }
      },
      "orderExecution": {
        "type": "Market"
      }
    },
    {
      "name": "Exit TSLA",
      "active": true,
      "automaticOrderApproval": false,
      "condition": {
        "type": "And",
        "conditions": [
          {
            "type": "Base",
            "lhs": {
              "type": "Price",
              "targetAsset": {
                "type": "Stock",
                "name": "TSLA",
                "symbol": "TSLA"
              }
            },
            "comparison": "lessThanOrEqual",
            "rhs": {
              "type": "SimpleMovingAverage",
              "targetAsset": {
                "type": "Stock",
                "name": "TSLA",
                "symbol": "TSLA"
              },
              "window": {
                "length": 20,
                "interval": "Day"
              }
            }
          },
          {
            "type": "Base",
            "lhs": {
              "type": "PositionValue",
              "targetAssets": [
                {
                  "type": "Stock",
                  "name": "TSLA",
                  "symbol": "TSLA"
                }
              ]
            },
            "comparison": "greaterThan",
            "rhs": {
              "type": "Value",
              "value": 0
            }
          }
        ]
      },
      "action": {
        "type": "Sell",
        "targetAsset": {
          "type": "Stock",
          "name": "TSLA",
          "symbol": "TSLA"
        },
        "amount": {
          "type": "percent of current positions",
          "amount": 100
        }
      },
      "orderExecution": {
        "type": "Market"
      }
    }
  ]
}

Step 4 of 6

Run the first TSLA historical test

Freeze these thresholds and choose a dated daily test before reading the result. Compare the TSLA curve with holding the same stock over matched dates.

Current status: Historical test pending
Example test plan: 2024-01-01 through 2024-12-31; daily; $10,000
Costs: 0.1% stock fee per fill; cash dividends; whole shares

What you should see

A completed test supplies its own return, drawdown, fees and order history. This new draft has no recorded historical result yet.

Inspect the request

Use the returned TSLA draft ID. Prepare one daily historical test for 2024-01-01 through 2024-12-31, $10,000, whole shares, cash dividends, a TSLA baseline and 0.1% stock fee per fill. Show the exact request and estimated cost for approval before submitting once. Poll the same returned test ID. Inspect return, drawdown, fees, history and order events. Keep thresholds fixed; do not insert 2026 filing values into the 2024 price-based rules.

Step 5 of 6

Observe TSLA volatility breakout in paper trading

Observe this TSLA candidate prospectively after reviewing its historical test. A $1,000 entry limits the amount committed per signal; the exit remains the indicator threshold shown above.

Inspect before accepting an order: The TSLA indicator value, share rounding, $1,000 entry, holding guard, exit and order approval.

What you should see

Your paper portfolio has its own ID, start date, schedule and dated history. These forward observations begin with your own run.

Inspect the request

Read back the reviewed TSLA volatility breakout draft. Prepare a separate paper-only deployment with the same rules and $10,000 starting capital. Show the plan for approval. Retain the resulting paper ID and verify its deployment type, timing, pending simulated orders and actual history. Inspect: The TSLA indicator value, share rounding, $1,000 entry, holding guard, exit and order approval. Keep the rules fixed and brokerage accounts unchanged.

Step 6 of 6

Review TSLA volatility breakout for live deployment

Review the paper candidate in Deployment Center, then choose Port to Live and inspect the actual target account before confirmation.

Open the live deployment walkthrough

Account and instrument review: Whole-share TSLA support, available buying power, evaluation timing, $1,000 entry, exit rule and manual order approval.

What you should see

The review identifies the target account, supported instruments, rule changes and approval settings before confirmation.

Inspect the request

Prepare a live deployment review for my TSLA volatility breakout paper portfolio. Read the actual account and broker capabilities, incoming rules and any existing rules that would be disabled. Check: Whole-share TSLA support, available buying power, evaluation timing, $1,000 entry, exit rule and manual order approval. Show the plan and keep live trading unchanged until I explicitly confirm it. If an instrument or action is unsupported, report it and stop.

Follow the Gemini CLI session

gemini mcp add --transport http --scope user nexustrade https://nexustrade.io/api/mcp
gemini mcp list

Scroll horizontally to read the full command, or copy it.

This guide runs on NexusTrade's MCP server. Gemini CLI operated the trading workflow below, from connection to the live review. The agent's role here is operating the workflow through that server.

The table names the tool call, the approval checkpoint, and the artifact to keep at each stage. Placeholders such as a returned draft ID stand for values your own run returns. This page records no IDs from anyone else's run.

No historical result is recorded for this draft yet. The filing below dates the research brief, and the first test runs only after approval.

Show the table · 6 rows, 4 columns

Filter rows

Scroll sideways to compare all columns. Select a heading to sort.


Connect Gemini CLI	sec_edgar list_filings for AAPL with limit 1	Public read only. No portfolios, ingested filings, or changes.	Filing company, form, date, and source URL
Research Tesla	sec_edgar list_filings and fundamentals for TSLA	The brief carries the filing URL, date, period, and units.	Dated TSLA brief
Draft the rules	build_portfolio preview, then one create_portfolio	Approve the rules before saving. Stop before paid tests.	Returned draft ID with a readback
Test history	Daily 2024 test at $10,000 with a TSLA baseline	Show the exact request and estimated cost. Submit once and poll the same ID.	Return, drawdown, fees, and order events
Trade on paper	Separate paper-only deployment at $10,000	Show the plan. Verify the portfolio is paper.	Running paper ID and dated history
Review live	Live deployment review against the actual account	Live trading stays unchanged until explicit confirmation.	Reviewed plan, or a stop report when unsupported

Where Gemini CLI stops for approval

Each consequential action in this guide waits at an approval gate. The agent previews first and acts only after explicit approval.

The rules preview returns valid and an empty issues list before anything is saved. The agent resolves problems and re-previews instead of saving a candidate with open problems.

Approve the rules before the agent saves them
The agent previews the configuration with build_portfolio and shows entry, sizing, exits, valid, and issues. It saves with create_portfolio only after approval and reads the returned draft back.
Approve the test cost before the agent submits once
Historical tests are paid runs. The agent shows the exact request and estimated cost for approval before submitting once, then polls the same returned test ID until complete.
Approve the paper plan and verify it is paper
The paper deployment is a separate portfolio with its own ID. The agent shows the plan for approval, verifies the deployment type, and leaves brokerage accounts unchanged.
Confirm the live move explicitly, or nothing moves
The agent reads the actual account and broker capabilities first and keeps live trading unchanged until explicit confirmation. It reports an unsupported instrument or action and stops.

Open the company filing

The filing dates the research brief. The proposed 2024 historical test uses price indicators; future company figures are outside those rules.

Tesla Q2 2026 filing ↗

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Discussion

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I connected Gemini CLI to a trading API and drafted a TSLA strategy

Follow this worked strategy

Follow the full journey

Connect Gemini CLI

Connect Gemini CLI in the intended environment

Research Tesla

Preview the TSLA rules

Run the first TSLA historical test

Observe TSLA volatility breakout in paper trading

Review TSLA volatility breakout for live deployment

Follow the Gemini CLI session

Where Gemini CLI stops for approval

Approve the rules before the agent saves them

Approve the test cost before the agent submits once

Approve the paper plan and verify it is paper

Confirm the live move explicitly, or nothing moves

Open the company filing

Continue exploring

Discussion

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