chore: [ML-1318]: Added custom prompt of pipeline summariser (#128)

* chore: [ML-1318]: Added custom prompt of pipeline summariser

Signed-off-by: Saranya-jena <[email protected]>

Author: Saranya-jena

cmd/harness-mcp-server/main.go

@@ -14,6 +14,7 @@ import (
 	"github.com/harness/harness-mcp/cmd/harness-mcp-server/config"
 	"github.com/harness/harness-mcp/pkg/harness"
 	"github.com/harness/harness-mcp/pkg/harness/auth"
+	"github.com/harness/harness-mcp/pkg/harness/prompts"
 	"github.com/harness/harness-mcp/pkg/modules"
 	"github.com/mark3labs/mcp-go/mcp"
 	"github.com/mark3labs/mcp-go/server"
@@ -379,6 +380,9 @@ func runStdioServer(ctx context.Context, config config.Config) error {
 	// Create module registry
 	moduleRegistry := modules.NewModuleRegistry(&config, toolsets)
 
+	// Register prompts generic
+	prompts.RegisterPrompts(harnessServer)
+
 	// Register prompts from all enabled modules
 	err = moduleRegistry.RegisterPrompts(harnessServer)
 	if err != nil {

pkg/harness/prompts/prompts.go

@@ -20,7 +20,7 @@ func RegisterPrompts(mcpServer *server.MCPServer) {
 					- If no dates are supplied, default startDate to 60 days ago and endDate to now.`).
 			Build())
 
-		prompts.Append(
+	prompts.Append(
 		p.NewPrompt().SetName("ask_confirmation_for_update_and_delete_operations").
 			SetDescription("Ensure that Update or Delete operations are executed ONLY after user confirmation.").
 			SetResultDescription("Execute operation if user input 'yes', cancel otherwise.").
@@ -36,6 +36,48 @@ func RegisterPrompts(mcpServer *server.MCPServer) {
 			`).
 			Build())
 
+	// Pipeline summarization prompt
+	prompts.Append(
+		p.NewPrompt().SetName("pipeline_summarizer").
+			SetDescription("Summarize a Harness pipeline's structure, purpose, and behavior.").
+			SetResultDescription("Comprehensive pipeline summary with key details.").
+			SetText(`I need you to summarise the pipeline with the input pipeline identifier.
+
+1. **What to do?**
+   - Fetch any required metadata or definitions for the pipeline.
+   - Analyze its configuration and structure.
+   - Make the necessary tool calls to get the pipeline related details.
+   - Produce a concise, accurate summary of the pipeline's design and behavior.
+
+2. **What tools to call?**
+   - get_pipeline  
+   - list_pipelines        
+   - get_environment
+   - get_service
+
+3. **Must-have details in the output** (acceptance criteria):
+   - **Purpose and Objective**: What this pipeline is designed to accomplish (e.g. "Builds and deploys a Node.js microservice to staging and production.")
+   - **High-Level Architecture**: Major components and phases (build, test, security scanning, deployment).
+   - **Environment Flow**: How the execution moves through environments.
+   - **Key Technologies**: Languages, frameworks, deployment targets, and tools used.
+   - **Trigger Conditions**: What events start the pipeline (Git commits, manual triggers, schedules).
+   - **Approval Gates**: Any manual approvals required, and who must sign off.
+   - **Dependencies**: External dependencies such as environments, infrastructures, connectors, services, other pipelines this one relies on, etc with their ids if available.
+   - **Success Criteria**: What defines a successful run.
+
+4. **Output format**
+   Return the following data ONLY in a markdown format, DO NOT use JSON literals:
+   {
+     "purpose":       string,
+     "architecture":  string,
+     "environment":   string,
+     "technologies":  string[],
+     "triggers":      string[],
+     "approvals":     string[],
+     "dependencies":  string[],
+     "success_criteria": string
+   }`).
+			Build())
 
 	p.AddPrompts(prompts, mcpServer)
 }