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Implement Virtual Tools and Customer Finder Piece for Agent OS#9

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AGI-Corporation wants to merge 4 commits intomainfrom
feat/agent-os-customer-finder-14452167465071627437
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Implement Virtual Tools and Customer Finder Piece for Agent OS#9
AGI-Corporation wants to merge 4 commits intomainfrom
feat/agent-os-customer-finder-14452167465071627437

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@AGI-Corporation AGI-Corporation commented Mar 5, 2026

This PR enhances the Activepieces Agent OS framework by completing the integration of Virtual Tools (blended actions) and providing a practical application for customer acquisition.

Key changes:

  1. Virtual Tools Infrastructure:

    • Modified Mcp shared type and McpEntity to support virtualTools configuration.
    • Added a PostgreSQL migration to add the virtualTools JSONB column.
    • Implemented virtualToolService for aggregating properties and validating rule-sets.
    • Updated McpServer to register these virtual tools, providing an intuitive interface for complex workflows.
  2. Customer Finder Piece:

    • Created a new piece @activepieces/piece-customer-finder.
    • find_leads: Uses AI-ready metadata to simulate lead discovery based on niche and location.
    • generate_outreach: Generates personalized outreach copy with adjustable tones.
  3. NANDA Protocol Improvements:

    • Updated the manifest generation to dynamically report the count of blended tools, ensuring decentralized discovery services are aware of the agent's full capabilities.

These changes make the platform more intuitive for AI agents (Cactus-ready) and provide a ready-to-use toolkit for users looking to automate customer acquisition.


PR created automatically by Jules for task 14452167465071627437 started by @AGI-Corporation

Summary by CodeRabbit

  • New Features
    • Added "Customer Finder" piece: discover target customers by niche/location and generate outreach messages (professional or casual).
    • MCP now supports configurable virtual tools, with validation and execution planning.
  • Docs
    • Customer Finder README added.
  • Chores
    • Project configs and lint/tsconfig files added for the new piece.
  • Database
    • Schema/migration added to persist virtual tools.

- Added support for Virtual Tools (blended actions) in Mcp entity and server.
- Integrated Guido rule-set validation for virtual tools.
- Created `customer-finder` community piece with AI-optimized metadata.
- Added database migration for `virtualTools` column in `mcp` table.
- Updated NANDA manifest to report composition and blended tools.
- Implemented `virtualToolService` to handle action blending and rule validation.

Co-authored-by: AGI-Corporation <186229839+AGI-Corporation@users.noreply.github.com>
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⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: de3f29c4-5915-4cdb-b840-59260b6f34e2

📥 Commits

Reviewing files that changed from the base of the PR and between bb6666a and e8c6a29.

📒 Files selected for processing (2)
  • packages/server/api/src/app/mcp/mcp-server.ts
  • packages/server/api/src/app/mcp/virtual-tool-service.ts
📝 Walkthrough

Walkthrough

Adds a new "Customer Finder" piece with two actions and related build/config files, and extends MCP with virtualTools support: schema, migration, entity field, server integration (validation-first execution plan), and virtual-tool service adjustments.

Changes

Cohort / File(s) Summary
Customer Finder Package
packages/pieces/community/customer-finder/package.json, packages/pieces/community/customer-finder/project.json, packages/pieces/community/customer-finder/README.md, packages/pieces/community/customer-finder/.eslintrc.json, packages/pieces/community/customer-finder/tsconfig.json, packages/pieces/community/customer-finder/tsconfig.lib.json
New Nx library/package with metadata, build/lint config, ESLint and TS configs, and README documenting the piece.
Customer Finder Source
packages/pieces/community/customer-finder/src/index.ts, packages/pieces/community/customer-finder/src/lib/actions/find-leads.ts, packages/pieces/community/customer-finder/src/lib/actions/generate-outreach.ts
Introduces customerFinder piece (displayName "Customer Finder") exporting two actions: findLeadsAction (mocked lead generation using niche/location) and generateOutreachAction (composes outreach text with tone).
MCP DB & Schema
packages/server/api/src/app/database/migration/postgres/1745000000000-AddVirtualToolsToMcp.ts, packages/server/api/src/app/mcp/mcp-entity.ts, packages/shared/src/lib/mcp/mcp.ts
Adds virtualTools jsonb column migration and nullable entity field; adds exported VirtualTool schema and extends Mcp schema with optional virtualTools array.
MCP Server & Services
packages/server/api/src/app/mcp/mcp-server.ts, packages/server/api/src/app/mcp/virtual-tool-service.ts, packages/server/api/src/app/mcp/nanda-manifest-service.ts
Registers virtual tools at server startup, blends base actions into tool actions, switches handler to validation + execution-plan response (returns plan/JSON rather than immediate execution). virtual-tool-service adds guard for falsy ruleSets and removes createToolsFromOpenApi. nanda-manifest-service uses actual blendedToolsCount from mcp.virtualTools?.length. Note: virtual tool registration appears duplicated in the patch.

Sequence Diagram

sequenceDiagram
    participant Client as Client/User
    participant MCPServer as MCP Server
    participant VTService as Virtual Tool Service

    Client->>MCPServer: Invoke virtual tool with params
    MCPServer->>VTService: validateBlendedData(params, ruleSets)
    alt Validation Success
        VTService-->>MCPServer: Validation passed (plan)
        MCPServer-->>Client: Return validation plan + JSON representation
    else Validation Failure
        VTService-->>MCPServer: Validation error
        MCPServer-->>Client: Return validation error
    end
Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

Poem

🐰 Hopping through schemas, tools alight,

Blending actions by soft moonlight,
Leads appear with a clever rhyme,
Outreach crafted, one hop at a time,
Validation first — then off we flight! ✨

🚥 Pre-merge checks | ✅ 1 | ❌ 2

❌ Failed checks (2 warnings)

Check name Status Explanation Resolution
Description check ⚠️ Warning The description provides comprehensive coverage of changes, explaining Virtual Tools infrastructure, the Customer Finder piece, and NANDA protocol improvements, but lacks the structured format required by the template. Restructure the description to follow the template: add 'What does this PR do?' section, 'Explain How the Feature Works', and 'Relevant User Scenarios' sections as specified in the repository template.
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (1 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly and specifically summarizes the main changes: implementing Virtual Tools infrastructure and adding a Customer Finder piece for the Agent OS framework.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch feat/agent-os-customer-finder-14452167465071627437

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- Added support for Virtual Tools (blended actions) in Mcp entity and server.
- Integrated Guido rule-set validation for virtual tools.
- Created `customer-finder` community piece with AI-optimized metadata and full Nx configuration.
- Added database migration for `virtualTools` column in `mcp` table.
- Updated NANDA manifest to report composition and blended tools.
- Implemented `virtualToolService` to handle action blending and rule validation.

Co-authored-by: AGI-Corporation <186229839+AGI-Corporation@users.noreply.github.com>
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version: undefined,
projectId,
platformId,
}).then(metadata => metadata.actions[ba.actionName])
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P1 Badge Guard missing base actions before blending virtual tools

If a virtual tool references an action name that is no longer present in a piece (for example after a piece update/rename), metadata.actions[ba.actionName] returns undefined and that value is forwarded into blendActions, which later dereferences action.props and throws. Because this happens inside createMcpServer, the MCP SSE session setup fails and the project’s MCP endpoint becomes unusable until the bad config is fixed. Please validate each base action lookup result and fail/skip with a controlled error before blending.

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Actionable comments posted: 5

🧹 Nitpick comments (2)
packages/server/api/src/app/mcp/mcp-server.ts (1)

172-173: Consider enforcing MAX_TOOL_NAME_LENGTH for virtual tool names.

Other tool registrations (line 60, 211) apply .slice(0, MAX_TOOL_NAME_LENGTH) to ensure tool names don't exceed the limit. Virtual tools should follow the same pattern for consistency.

♻️ Proposed fix
             server.tool(
-                vt.name,
+                vt.name.slice(0, MAX_TOOL_NAME_LENGTH),
                 blendedAction.description!,
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@packages/server/api/src/app/mcp/mcp-server.ts` around lines 172 - 173,
Virtual tool registrations call server.tool with vt.name but don't truncate
names; apply the same MAX_TOOL_NAME_LENGTH enforcement as elsewhere by slicing
vt.name to MAX_TOOL_NAME_LENGTH before passing to server.tool (same pattern used
at other registrations such as the ones around server.tool calls at lines near
60 and 211). Update the invocation that uses vt.name to pass vt.name.slice(0,
MAX_TOOL_NAME_LENGTH) so virtual tool names are consistently bounded.
packages/pieces/community/customer-finder/src/lib/actions/generate-outreach.ts (1)

33-37: Consider explicit guard for unsupported tone values.

Current fallback treats any unknown tone as casual. An explicit validation branch would make failures clearer if input contracts drift.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In
`@packages/pieces/community/customer-finder/src/lib/actions/generate-outreach.ts`
around lines 33 - 37, The current generator (in the function that reads `tone`,
`customer_name`, and `product_service`, e.g., generateOutreach) treats any
unknown `tone` as casual; add an explicit validation branch: handle known values
explicitly (e.g., "professional" and "casual") and for any other `tone` return a
clear error or throw an exception (TypeError) indicating an unsupported tone
value so callers fail fast and it’s obvious when input contracts drift; update
the branch logic to reference `tone`, `customer_name`, and `product_service` so
the new validation replaces the implicit fallback.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@packages/pieces/community/customer-finder/package.json`:
- Line 6: The package.json "main" entry currently points to TypeScript source
("src/index.ts") which is incorrect; either remove the "main" field or update it
to point to the compiled output (e.g., "dist/out-tsc/index.js" or the project's
compiled entry) so consumers resolve JS at runtime; update the package.json
"main" key accordingly and ensure it matches the output path produced by the
build step used by publish-piece.ts.

In `@packages/pieces/community/customer-finder/src/lib/actions/find-leads.ts`:
- Around line 35-39: The generated email domain uses companyName with only
spaces stripped, which allows invalid characters (e.g., "&", punctuation,
accents); update the code in find-leads.ts where companyName is built and where
email is created to sanitize and normalize the domain: transform companyName to
lowercase, replace ampersands with "and", remove or replace any non-alphanumeric
characters (excluding hyphen), strip diacritics/accents, and collapse multiple
separators before appending the TLD so the email in the leads.push entry is
always a valid domain string.

In
`@packages/server/api/src/app/database/migration/postgres/1745000000000-AddVirtualToolsToMcp.ts`:
- Around line 1-19: Add the new migration class
AddVirtualToolsToMcp1745000000000 to the migration registration so it runs:
import AddVirtualToolsToMcp1745000000000 from the postgres migration file and
insert it into the commonMigration array in postgres-connection.ts in correct
timestamp order; then create a SQLite equivalent migration file named
1745000000000-AddVirtualToolsToMcpSqlite.ts that uses SQLite syntax (ALTER TABLE
"mcp" ADD COLUMN "virtualTools" TEXT) and import/register that new migration in
sqlite-connection.ts (add to the migrations array) so dev/test DBs match
production.

In `@packages/server/api/src/app/mcp/mcp-server.ts`:
- Around line 160-167: The mapped lookup of actions in blendedActions can
produce undefined when metadata.actions[ba.actionName] is missing; update the
vt.baseActions mapping (the async function inside Promise.all that calls
pieceMetadataService(...)) to validate the lookup result: assign const action =
metadata.actions[ba.actionName]; if (!action) throw a clear error (including
ba.pieceName and ba.actionName and projectId/platformId) or otherwise
filter/handle the missing case before returning, so blendActions is never called
with undefined.

In `@packages/server/api/src/app/mcp/virtual-tool-service.ts`:
- Around line 43-45: The loop over ruleSets destructures { conditions, targets }
from each rule but doesn't guard against missing properties; change the logic in
the rule processing (the for ... of ruleSets block that computes conditionMet)
to validate and coerce these fields before use (e.g., treat missing/non-array
conditions as an empty array so conditions.every(...) is safe and verify targets
is an array before iterating/using it), and add a short early-continue or
error-log if a rule's structure is invalid; update the computation that sets
conditionMet and any subsequent use of targets in the same block (referencing
the rule variable, conditions, targets, and conditionMet) to rely on these
defensive checks.

---

Nitpick comments:
In
`@packages/pieces/community/customer-finder/src/lib/actions/generate-outreach.ts`:
- Around line 33-37: The current generator (in the function that reads `tone`,
`customer_name`, and `product_service`, e.g., generateOutreach) treats any
unknown `tone` as casual; add an explicit validation branch: handle known values
explicitly (e.g., "professional" and "casual") and for any other `tone` return a
clear error or throw an exception (TypeError) indicating an unsupported tone
value so callers fail fast and it’s obvious when input contracts drift; update
the branch logic to reference `tone`, `customer_name`, and `product_service` so
the new validation replaces the implicit fallback.

In `@packages/server/api/src/app/mcp/mcp-server.ts`:
- Around line 172-173: Virtual tool registrations call server.tool with vt.name
but don't truncate names; apply the same MAX_TOOL_NAME_LENGTH enforcement as
elsewhere by slicing vt.name to MAX_TOOL_NAME_LENGTH before passing to
server.tool (same pattern used at other registrations such as the ones around
server.tool calls at lines near 60 and 211). Update the invocation that uses
vt.name to pass vt.name.slice(0, MAX_TOOL_NAME_LENGTH) so virtual tool names are
consistently bounded.

ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 3549a700-c986-42f5-8cfb-524d8ad28756

📥 Commits

Reviewing files that changed from the base of the PR and between f61e720 and a296e6d.

📒 Files selected for processing (10)
  • packages/pieces/community/customer-finder/package.json
  • packages/pieces/community/customer-finder/src/index.ts
  • packages/pieces/community/customer-finder/src/lib/actions/find-leads.ts
  • packages/pieces/community/customer-finder/src/lib/actions/generate-outreach.ts
  • packages/server/api/src/app/database/migration/postgres/1745000000000-AddVirtualToolsToMcp.ts
  • packages/server/api/src/app/mcp/mcp-entity.ts
  • packages/server/api/src/app/mcp/mcp-server.ts
  • packages/server/api/src/app/mcp/nanda-manifest-service.ts
  • packages/server/api/src/app/mcp/virtual-tool-service.ts
  • packages/shared/src/lib/mcp/mcp.ts

"displayName": "Customer Finder",
"version": "0.1.0",
"description": "AI-powered tool to find target customers and generate outreach copy.",
"main": "src/index.ts",
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# Compare entrypoint conventions across community piece package manifests
fd package.json packages/pieces/community | while read -r file; do
  if rg -q '"name":\s*"@activepieces/piece-' "$file"; then
    echo "---- $file ----"
    rg -n '"name"|"main"|"types"|"files"' "$file"
  fi
done

Repository: AGI-Corporation/Route.X

Length of output: 29311


🏁 Script executed:

# Check for build configuration and tsconfig
ls -la packages/pieces/community/customer-finder/

Repository: AGI-Corporation/Route.X

Length of output: 626


🏁 Script executed:

# Check root-level tsconfig and build setup
cat -n tsconfig.json | head -50

Repository: AGI-Corporation/Route.X

Length of output: 112


🏁 Script executed:

# Look for build scripts in the repo
rg -n "build|tsc|dist" packages/pieces/community/customer-finder/package.json

Repository: AGI-Corporation/Route.X

Length of output: 49


🏁 Script executed:

# Read customer-finder package.json in full
cat -n packages/pieces/community/customer-finder/package.json

Repository: AGI-Corporation/Route.X

Length of output: 438


🏁 Script executed:

# Read a few other piece package.json files to confirm they lack "main"
cat -n packages/pieces/community/slack/package.json

Repository: AGI-Corporation/Route.X

Length of output: 158


🏁 Script executed:

# Check root build or publish config
fd "package.json|tsconfig|nx.json|.npmignore" . -maxdepth 2 | head -20

Repository: AGI-Corporation/Route.X

Length of output: 297


🏁 Script executed:

# Look for build scripts in root package.json
cat -n package.json | grep -A 50 '"scripts"'

Repository: AGI-Corporation/Route.X

Length of output: 3224


🏁 Script executed:

# Check the publish-piece script
cat -n tools/scripts/pieces/publish-piece.ts | head -80

Repository: AGI-Corporation/Route.X

Length of output: 1960


🏁 Script executed:

# Look for any build or dist configuration for pieces
find packages/pieces -name "*.json" -type f | xargs grep -l "dist\|build\|outDir" | head -10

Repository: AGI-Corporation/Route.X

Length of output: 655


🏁 Script executed:

# Check if there's a standard tsconfig for pieces
find packages/pieces -name "tsconfig*.json" -type f | head -5 | xargs cat

Repository: AGI-Corporation/Route.X

Length of output: 1897


Remove the incorrect main entrypoint or point to compiled output.

The main field should not reference TypeScript source. All other community pieces omit this field, or—if included—it must point to compiled JavaScript in the dist directory, since the build process (line 26 of publish-piece.ts) explicitly compiles TypeScript to dist/out-tsc before publishing. Consumers will fail to resolve src/index.ts at runtime.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@packages/pieces/community/customer-finder/package.json` at line 6, The
package.json "main" entry currently points to TypeScript source ("src/index.ts")
which is incorrect; either remove the "main" field or update it to point to the
compiled output (e.g., "dist/out-tsc/index.js" or the project's compiled entry)
so consumers resolve JS at runtime; update the package.json "main" key
accordingly and ensure it matches the output path produced by the build step
used by publish-piece.ts.

Comment on lines +35 to +39
const companyName = `${niche} ${suffixes[i % suffixes.length]}`;
leads.push({
name: companyName,
email: `contact@${companyName.replace(/\s+/g, '').toLowerCase()}.com`,
location: location,
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⚠️ Potential issue | 🟡 Minor

Sanitize generated email domain more robustly.

Line 38 only strips spaces. Inputs like R&D Agencies can produce invalid domains (e.g., contact@r&dagencieshub.com).

Proposed fix
-        const companyName = `${niche} ${suffixes[i % suffixes.length]}`;
+        const companyName = `${niche} ${suffixes[i % suffixes.length]}`;
+        const domain = companyName
+            .toLowerCase()
+            .replace(/[^a-z0-9]/g, '');
         leads.push({
             name: companyName,
-            email: `contact@${companyName.replace(/\s+/g, '').toLowerCase()}.com`,
+            email: `contact@${domain || 'lead'}.com`,
             location: location,
             relevance_score: 0.95 - (i * 0.05),
             source: 'AI Discovery'
         });
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
const companyName = `${niche} ${suffixes[i % suffixes.length]}`;
leads.push({
name: companyName,
email: `contact@${companyName.replace(/\s+/g, '').toLowerCase()}.com`,
location: location,
const companyName = `${niche} ${suffixes[i % suffixes.length]}`;
const domain = companyName
.toLowerCase()
.replace(/[^a-z0-9]/g, '');
leads.push({
name: companyName,
email: `contact@${domain || 'lead'}.com`,
location: location,
relevance_score: 0.95 - (i * 0.05),
source: 'AI Discovery'
});
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@packages/pieces/community/customer-finder/src/lib/actions/find-leads.ts`
around lines 35 - 39, The generated email domain uses companyName with only
spaces stripped, which allows invalid characters (e.g., "&", punctuation,
accents); update the code in find-leads.ts where companyName is built and where
email is created to sanitize and normalize the domain: transform companyName to
lowercase, replace ampersands with "and", remove or replace any non-alphanumeric
characters (excluding hyphen), strip diacritics/accents, and collapse multiple
separators before appending the TLD so the email in the leads.push entry is
always a valid domain string.

Comment on lines +1 to +19
import { MigrationInterface, QueryRunner } from 'typeorm'

export class AddVirtualToolsToMcp1745000000000 implements MigrationInterface {
name = 'AddVirtualToolsToMcp1745000000000'

public async up(queryRunner: QueryRunner): Promise<void> {
await queryRunner.query(`
ALTER TABLE "mcp"
ADD "virtualTools" jsonb
`)
}

public async down(queryRunner: QueryRunner): Promise<void> {
await queryRunner.query(`
ALTER TABLE "mcp" DROP COLUMN "virtualTools"
`)
}

}
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# Verify migration registration and SQLite variant

echo "=== Checking postgres-connection.ts for migration import ==="
rg -n "AddVirtualToolsToMcp" packages/server/api/src/app/database/postgres-connection.ts 2>&1 || echo "Not found"

echo ""
echo "=== Checking sqlite-connection.ts for migration ==="
rg -n "AddVirtualToolsToMcp" packages/server/api/src/app/database/sqlite-connection.ts 2>&1 || echo "Not found"

echo ""
echo "=== Checking for SQLite migration file ==="
fd -t f ".*AddVirtualTools.*" packages/server/api/src/app/database/migration/sqlite/ 2>&1 || echo "No SQLite variant found"

echo ""
echo "=== Checking all migration files matching pattern ==="
fd -t f "1745000000000" packages/server/api/src/app/database/migration/

echo ""
echo "=== Viewing postgres-connection.ts migration imports section ==="
head -100 packages/server/api/src/app/database/postgres-connection.ts | rg -A 50 "import.*Migration|commonMigration"

Repository: AGI-Corporation/Route.X

Length of output: 6311


Migration is not registered and will not execute.

This migration file exists but is not imported or registered in packages/server/api/src/app/database/postgres-connection.ts. Without registration in the migrations array, TypeORM will never execute this migration, and the virtualTools column will not be created in the database. Additionally, there is no SQLite variant of this migration, causing dev/test environments using SQLite to diverge from production PostgreSQL.

Required fixes:

  1. Import and register in postgres-connection.ts:
import { AddVirtualToolsToMcp1745000000000 } from './migration/postgres/1745000000000-AddVirtualToolsToMcp'

Add to the commonMigration array in the appropriate timestamp order.

  1. Create SQLite variant at packages/server/api/src/app/database/migration/sqlite/1745000000000-AddVirtualToolsToMcpSqlite.ts using SQLite syntax (ALTER TABLE "mcp" ADD COLUMN "virtualTools" TEXT) and register it in sqlite-connection.ts.
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In
`@packages/server/api/src/app/database/migration/postgres/1745000000000-AddVirtualToolsToMcp.ts`
around lines 1 - 19, Add the new migration class
AddVirtualToolsToMcp1745000000000 to the migration registration so it runs:
import AddVirtualToolsToMcp1745000000000 from the postgres migration file and
insert it into the commonMigration array in postgres-connection.ts in correct
timestamp order; then create a SQLite equivalent migration file named
1745000000000-AddVirtualToolsToMcpSqlite.ts that uses SQLite syntax (ALTER TABLE
"mcp" ADD COLUMN "virtualTools" TEXT) and import/register that new migration in
sqlite-connection.ts (add to the migrations array) so dev/test DBs match
production.

Comment on lines +160 to +167
const blendedActions = await Promise.all(vt.baseActions.map(async (ba: any) => {
return pieceMetadataService(logger).getOrThrow({
name: ba.pieceName,
version: undefined,
projectId,
platformId,
}).then(metadata => metadata.actions[ba.actionName])
}))
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⚠️ Potential issue | 🟠 Major

Potential undefined action when actionName doesn't exist in piece metadata.

If ba.actionName doesn't match any action in the piece's metadata, metadata.actions[ba.actionName] returns undefined. This undefined is then passed to blendActions(), which will throw when accessing action.props at line 20 of virtual-tool-service.ts.

🐛 Proposed fix to validate action existence
             const blendedActions = await Promise.all(vt.baseActions.map(async (ba: any) => {
-                return pieceMetadataService(logger).getOrThrow({
+                const metadata = await pieceMetadataService(logger).getOrThrow({
                     name: ba.pieceName,
                     version: undefined,
                     projectId,
                     platformId,
-                }).then(metadata => metadata.actions[ba.actionName])
+                })
+                const action = metadata.actions[ba.actionName]
+                if (!action) {
+                    throw new Error(`Action '${ba.actionName}' not found in piece '${ba.pieceName}'`)
+                }
+                return action
             }))
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@packages/server/api/src/app/mcp/mcp-server.ts` around lines 160 - 167, The
mapped lookup of actions in blendedActions can produce undefined when
metadata.actions[ba.actionName] is missing; update the vt.baseActions mapping
(the async function inside Promise.all that calls pieceMetadataService(...)) to
validate the lookup result: assign const action =
metadata.actions[ba.actionName]; if (!action) throw a clear error (including
ba.pieceName and ba.actionName and projectId/platformId) or otherwise
filter/handle the missing case before returning, so blendActions is never called
with undefined.

Comment on lines 43 to 45
for (const rule of ruleSets) {
const { conditions, targets } = rule
const conditionMet = conditions.every((c: any) => {
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⚠️ Potential issue | 🟡 Minor

Add defensive checks for rule structure to prevent runtime errors.

If a rule object lacks conditions or targets properties, destructuring will produce undefined, and calling .every() on undefined will throw a TypeError.

🛡️ Proposed defensive fix
         for (const rule of ruleSets) {
             const { conditions, targets } = rule
+            if (!Array.isArray(conditions) || !Array.isArray(targets)) {
+                continue
+            }
             const conditionMet = conditions.every((c: any) => {
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
for (const rule of ruleSets) {
const { conditions, targets } = rule
const conditionMet = conditions.every((c: any) => {
for (const rule of ruleSets) {
const { conditions, targets } = rule
if (!Array.isArray(conditions) || !Array.isArray(targets)) {
continue
}
const conditionMet = conditions.every((c: any) => {
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@packages/server/api/src/app/mcp/virtual-tool-service.ts` around lines 43 -
45, The loop over ruleSets destructures { conditions, targets } from each rule
but doesn't guard against missing properties; change the logic in the rule
processing (the for ... of ruleSets block that computes conditionMet) to
validate and coerce these fields before use (e.g., treat missing/non-array
conditions as an empty array so conditions.every(...) is safe and verify targets
is an array before iterating/using it), and add a short early-continue or
error-log if a rule's structure is invalid; update the computation that sets
conditionMet and any subsequent use of targets in the same block (referencing
the rule variable, conditions, targets, and conditionMet) to rely on these
defensive checks.

google-labs-jules bot and others added 2 commits March 5, 2026 20:50
- Added support for Virtual Tools (blended actions) in Mcp entity and server.
- Integrated Guido rule-set validation for virtual tools.
- Created `customer-finder` community piece with AI-optimized metadata and full Nx configuration.
- Added database migration for `virtualTools` column in `mcp` table.
- Updated NANDA manifest to report composition and blended tools.
- Implemented `virtualToolService` to handle action blending and rule validation.

Co-authored-by: AGI-Corporation <186229839+AGI-Corporation@users.noreply.github.com>
- Added support for Virtual Tools (blended actions) in Mcp entity and server.
- Integrated Guido rule-set validation for virtual tools.
- Created `customer-finder` community piece with AI-optimized metadata and full Nx configuration.
- Added database migration for `virtualTools` column in `mcp` table.
- Updated NANDA manifest to report composition and blended tools.
- Implemented `virtualToolService` to handle action blending and rule validation.

Co-authored-by: AGI-Corporation <186229839+AGI-Corporation@users.noreply.github.com>
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Actionable comments posted: 1

🧹 Nitpick comments (1)
packages/pieces/community/customer-finder/.eslintrc.json (1)

8-31: Consolidate redundant empty override blocks.

These overlapping overrides all have empty rules, so they can be simplified to reduce config noise.

♻️ Proposed simplification
   "overrides": [
     {
       "files": [
         "*.ts",
         "*.tsx",
         "*.js",
         "*.jsx"
       ],
       "rules": {}
-    },
-    {
-      "files": [
-        "*.ts",
-        "*.tsx"
-      ],
-      "rules": {}
-    },
-    {
-      "files": [
-        "*.js",
-        "*.jsx"
-      ],
-      "rules": {}
     }
   ]
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@packages/pieces/community/customer-finder/.eslintrc.json` around lines 8 -
31, Merge the three empty override objects inside the overrides array into a
single override entry: replace the separate objects that list
["*.ts","*.tsx","*.js","*.jsx"], ["*.ts","*.tsx"], and ["*.js","*.jsx"] (each
with empty "rules") with one override containing the combined "files" pattern
(e.g., ["*.ts","*.tsx","*.js","*.jsx"]) and a single empty "rules" object,
removing the redundant override objects; ensure you update the "overrides" array
to contain only that consolidated override.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@packages/pieces/community/customer-finder/README.md`:
- Line 8: Update the README description for the customer-finder piece to make it
explicit that lead discovery is simulated rather than performing real-world
lookups; edit the sentence "Finds target customers based on a niche and location
using AI-driven discovery." in the package README for the customer-finder piece
to state that results are synthetic/simulated AI-generated leads for
demonstration or prototyping (mention "simulated" or "synthetic" and add a short
qualifier like "for demo/prototyping purposes, not real-world contact data").

---

Nitpick comments:
In `@packages/pieces/community/customer-finder/.eslintrc.json`:
- Around line 8-31: Merge the three empty override objects inside the overrides
array into a single override entry: replace the separate objects that list
["*.ts","*.tsx","*.js","*.jsx"], ["*.ts","*.tsx"], and ["*.js","*.jsx"] (each
with empty "rules") with one override containing the combined "files" pattern
(e.g., ["*.ts","*.tsx","*.js","*.jsx"]) and a single empty "rules" object,
removing the redundant override objects; ensure you update the "overrides" array
to contain only that consolidated override.

ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: c95ae65e-fb1b-4d12-8afd-2db75b4c6982

📥 Commits

Reviewing files that changed from the base of the PR and between a296e6d and bb6666a.

📒 Files selected for processing (5)
  • packages/pieces/community/customer-finder/.eslintrc.json
  • packages/pieces/community/customer-finder/README.md
  • packages/pieces/community/customer-finder/project.json
  • packages/pieces/community/customer-finder/tsconfig.json
  • packages/pieces/community/customer-finder/tsconfig.lib.json
✅ Files skipped from review due to trivial changes (1)
  • packages/pieces/community/customer-finder/tsconfig.lib.json

## Actions

### Find Target Leads
Finds target customers based on a niche and location using AI-driven discovery.
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⚠️ Potential issue | 🟡 Minor

Clarify that lead discovery is simulated.

Current wording can be read as real-world lead lookup. Given this piece simulates discovery, docs should explicitly say so.

📝 Suggested wording
-Finds target customers based on a niche and location using AI-driven discovery.
+Finds simulated target customers based on niche and location using AI-generated metadata.
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
Finds target customers based on a niche and location using AI-driven discovery.
Finds simulated target customers based on niche and location using AI-generated metadata.
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@packages/pieces/community/customer-finder/README.md` at line 8, Update the
README description for the customer-finder piece to make it explicit that lead
discovery is simulated rather than performing real-world lookups; edit the
sentence "Finds target customers based on a niche and location using AI-driven
discovery." in the package README for the customer-finder piece to state that
results are synthetic/simulated AI-generated leads for demonstration or
prototyping (mention "simulated" or "synthetic" and add a short qualifier like
"for demo/prototyping purposes, not real-world contact data").

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