Add Agent skill

.cursor/skills/create-ticloud-cli-command/LICENSE.txt

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.cursor/skills/create-ticloud-cli-command/SKILL.md

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+---
+name: create-ticloud-cli-command
+description: Builds TiDB Cloud CLI commands. Use when creating new commands.
+license: Complete terms in LICENSE.txt
+metadata:
+  author: shiyuhang0
+---
+
+# Create TiCloud CLI Command
+
+This skill builds TiDB Cloud CLI commands, helping users create new commands with production-ready code.
+
+## When to use
+
+- The user asks to create new CLI commands or subcommands.
+- Do not use when the agent does not support plan mode.
+
+## About TiDB Cloud CLI
+
+TiDB Cloud CLI (TiCloud CLI) is a command-line interface for interacting with TiDB Cloud, built on the Cobra library.
+
+Key design of TiDB Cloud CLI:
+- Built on the Cobra library.
+- Uses the TiDB Cloud Open API as the client and keeps the SDK inside the project.
+- Every command supports both interactive and non-interactive modes.
+
+- More about TiDB Cloud CLI: `references/tidbcloud-cli.md`.
+- More about Cobra: `references/cobra.md`.
+
+## Core Principles
+
+### Plan first
+
+The AI agent must switch to plan mode to collect information from the user and generate a plan first.
+
+Then use agent mode to generate the code.
+
+### Test first
+
+If the user requires testing, testing takes precedence over implementation. Write tests first, then implement, and finally validate against the tests.
+
+### Declarative
+
+The user must declare the command format; the implementation must comply with that declared format.
+
+## Workflow
+
+Must follow the workflow below:
+
+### Generate SDK phase
+
+Always prompt the user: "Do you need to add or update swagger? Please provide the swagger path if you need."
+
+Skip this phase if user does not need.
+
+Once in this phase, follow the guide in `references/sdk.md` to generate the SDK.
+
+After SDK is generated, ask user to use go>=1.24 to run `make generate-mocks` manually!
+
+### Plan phase
+
+The agent must switch to plan mode in this phase.
+
+The agent must ask the user for the following information during the plan phase:
+1. **Command format**: If the user does not provide the command format, ask them to provide it first. See `assets/command.md` for the command format template. The commnad flags can be omitted as it can be inferred from swagger.
+2. **Tests**: Ask whether the user needs tests. Tests are recommended.
+3. **Other necessary information**
+
+Generate the plan after the user confirms all the information.
+
+### Agent phase
+
+The agent must switch to agent mode in this phase. Follow the workflow below:
+
+1. **Ensure the generate SDK phase**
+2. **Write unit tests**
+3. **Implement command**
+4. **Run tests**
+
+#### Ensure the sdk
+
+Ensure generate SDK phase has been done.
+
+#### Write unit tests
+
+Skip this step if the user does not need tests.
+
+Write unit tests following `references/ut.md`. If the tests need to invoke the command, create the empty command first. See `assets/empty.go`.
+
+#### Implement command
+
+Implement the command following the patterns in `assets/example`.
+
+The implementation must meet the following requirements:
+
+1. **Command definition**: Include name, aliases, example, and other necessary attributes.
+
+2. **Flags definition**: Include flag type, description, default value, etc. Infer flag information from the Swagger spec and SDK client parameters. See `references/flag.md` for more details. Please get customer confirmation once the flags are set.
+
+3. **Flags retrieval**: Implement retrieval logic for both interactive and non-interactive modes. For interactive mode, UI is required. The UI is based on the Bubbletea library. See `references/ui.md` for more details.
+
+4. **Dual mode support**: Support both interactive and non-interactive modes. Rules:
+   1. **Detect mode** with `MarkInteractive`:
+      - Default to interactive.
+      - If any non-interactive flag is provided, switch to non-interactive and mark required flags.
+   2. **Interactive constraints**:
+      - If `!h.IOStreams.CanPrompt`, return an error instructing the user to use non-interactive flags.
+
+5. **SDK calls**: Use the SDK client in `api_client.go` to call the corresponding method. Note that `assets/example` does not include this part (it is only a template); it must be included when implementing the actual command.
+
+#### Run the tests
+
+Skip this step if the user does not need tests.
+
+Run tests with: `go test -race -cover -count=1 path -v`
+
+For example, to run tests under `internal/cli/serverless/branch`: `go test -race -cover -count=1 ./internal/cli/serverless/branch -v`. 
+
+Ensure all tests pass. If they do not pass, fix the implementation or the tests.
+
+## Final Code Structure
+
+The final code structure must follow the structure in `assets/example`:
+
+- Command Go files.
+- UI Go files.
+- Test files if needed.
+
+Command output should follow the patterns in `assets/example`:
+
+- **Human output**: Print a concise, user-friendly message; use `color.GreenString` for success. Avoid raw JSON in human mode.
+- **JSON output**: Use `output.PrintJson` with a stable, predictable payload (e.g. keys like `message`, resource IDs, `items`).
+- **No TTY**: Default to JSON output for list/describe-style commands (see `assets/example/list.go`).
+- **Examples**: Include `Example` blocks for both interactive and non-interactive usage (see `assets/example/create.go` and `assets/example/list.go`).

.cursor/skills/create-ticloud-cli-command/assets/command.md

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+# Command format
+
+This document describes the command format users need to provide. The following uses the example resource:
+
+
+```
+ticloud serverless example create -c --displayname
+ticloud serverless example get -c --example-id
+ticloud serverless example list -c --output
+ticloud serverless example delete -c --example-id --force
+```
+
+Flags can be omitted and inferred from the TiDB Cloud SDK. The following are also accepted:
+
+```
+ticloud serverless example create
+ticloud serverless example get
+ticloud serverless example list
+ticloud serverless example delete
+```

.cursor/skills/create-ticloud-cli-command/assets/empty.go

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+// Copyright 2026 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package example
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/tidbcloud/tidbcloud-cli/internal"
+)
+
+func CreateCmd(h *internal.Helper) *cobra.Command {
+	return nil
+}