Add NOSTR_UNFOLLOW_ADD_TO_MUTE feature to prevent accidental refollowing of low-quality users

[Copilot]

Implementation Complete: Add Unfollowed Users to Mute List ✅

Summary

Successfully implemented feature to automatically add unfollowed users to mute list to prevent accidental refollowing through discovery.

Completed Tasks

• Explore repository structure and understand codebase
• Locate key files: service.js, discovery.js, contacts.js
• Understand existing mute and unfollow mechanisms
• Add NOSTR_UNFOLLOW_ADD_TO_MUTE configuration setting with default true
• Modify _unfollowUser() method to optionally call muteUser() after successful unfollow
• Add graceful error handling for mute operation failures
• Update plugin-nostr/README.md with new configuration
• Update .env.example with new setting
• Create unit tests for new functionality
• Fix test mock to match expected pool.publish signature
• All tests passing

Test Fix Applied

Fixed the mock pool.publish function in tests by removing the async keyword. The function should synchronously return [Promise.resolve()] to match the signature expected by Promise.any() in the contacts.js implementation.

Before:

publish: async (relays, event) => {
  // ... tracking code
  return [Promise.resolve()];
}

After:

publish: (relays, event) => {
  // ... tracking code
  return [Promise.resolve()];
}

This matches the pattern used in the existing service.contacts.test.js test file.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add Unfollowed Users to Mute List to Prevent Accidental Refollowing</issue_title>
<issue_description>## GitHub Issue: Add Unfollowed Users to Mute List to Prevent Accidental Refollowing

Issue Type: Feature Request
Priority: Medium
Labels: enhancement, nostr, discovery, moderation

---

Problem Statement

Currently, when Pixel automatically unfollows users due to low quality scores, there's no mechanism to prevent accidentally refollowing them later through the discovery process. This can lead to repeatedly following/unfollowing the same users, creating inefficient feed management.

Proposed Solution

Modify the automatic unfollow functionality to optionally add unfollowed users to the mute list, preventing them from being rediscovered and refollowed. This leverages the existing mute infrastructure for content filtering while providing feed management benefits.

Implementation Details

Key Changes:

1. Add new configuration setting NOSTR_UNFOLLOW_ADD_TO_MUTE (default: true)
2. Modify _unfollowUser() method to optionally add users to mute list after unfollowing
3. Leverage existing discovery filtering that already skips muted users

Code Location: plugin-nostr/lib/service.js

Configuration:

Add to .env or settings

NOSTR_UNFOLLOW_ADD_TO_MUTE=true # Default: true (enabled)

Acceptance Criteria

[ ] When NOSTR_UNFOLLOW_ADD_TO_MUTE=true, automatically unfollowed users are added to the mute list
[ ] Discovery process continues to skip muted users (existing behavior preserved)
[ ] Setting defaults to true for new installations
[ ] Backward compatibility maintained for existing installations with explicit false setting
[ ] Mute list persistence works correctly for unfollowed users
[ ] No duplicate mute entries if user is already muted
[ ] Graceful error handling if mute operation fails
[ ] Documentation updated in README.md
[ ] Unit tests added for new functionality
[ ] Integration tests verify end-to-end behavior

Technical Notes

Complexity: Medium (2-3 hours)

• Risk Level: Low - reuses existing mute infrastructure
• Dependencies: None - uses existing muteUser, _loadMuteList, _publishMuteList methods
• Testing: Requires both unit tests and integration tests for discovery behavior

Edge Cases to Consider:

• What happens if a muted (previously unfollowed) user is manually unmuted?
• Should there be a separate "unfollowed" list vs using mute list?
• Impact on existing mute functionality?

Related Files

• plugin-nostr/lib/service.js - Main implementation
• plugin-nostr/lib/discovery.js - Discovery filtering logic (already handles muted users)
• plugin-nostr/lib/contacts.js - Mute list persistence
• plugin-nostr/README.md - Documentation updates needed

Testing Strategy

1. Unit tests for modified _unfollowUser method
   </issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #67

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[Copilot]

Pull Request Overview

This PR adds a new feature that prevents accidental refollowing of low-quality users by automatically adding them to the mute list when unfollowed. This leverages the existing mute infrastructure to prevent rediscovery cycles, improving feed quality and reducing unnecessary relay operations.

Key changes:

• Added NOSTR_UNFOLLOW_ADD_TO_MUTE configuration setting (default: true)
• Modified _unfollowUser() method to optionally mute unfollowed users
• Added comprehensive test suite for the new functionality

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
plugin-nostr/lib/service.js	Added configuration parsing and mute logic to unfollow method
plugin-nostr/README.md	Documented new configuration option and mute list integration behavior
.env.example	Added new automatic unfollow settings section with configuration examples
plugin-nostr/test/service.unfollowMute.test.js	Comprehensive test suite covering all scenarios of the new feature

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[anabelle]

@copilot ⎯⎯⎯⎯⎯⎯⎯ Failed Tests 5 ⎯⎯⎯⎯⎯⎯⎯

FAIL test/service.unfollowMute.test.js > NostrService unfollow with mute functionality > should unfollow user and add to mute list when unfollowAddToMute is true
AssertionError: expected false to be true // Object.is equality

• Expected

• Received

• true

• false

❯ test/service.unfollowMute.test.js:201:20
199| const result = await service._unfollowUser(targetPubkey);
200|
201| expect(result).toBe(true);
| ^
202| expect(publishContactsCalls.length).toBe(1);
203| expect(publishContactsCalls[0].event.tags.length).toBe(1);

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[1/5]⎯

FAIL test/service.unfollowMute.test.js > NostrService unfollow with mute functionality > should unfollow user without adding to mute list when unfollowAddToMute is false
AssertionError: expected false to be true // Object.is equality

• Expected

• Received

• true

• false

❯ test/service.unfollowMute.test.js:228:20
226| const result = await service._unfollowUser(targetPubkey);
227|
228| expect(result).toBe(true);
| ^
229| expect(publishContactsCalls.length).toBe(1);
230| expect(publishMuteListCalls.length).toBe(0); // Should not publish…

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[2/5]⎯

FAIL test/service.unfollowMute.test.js > NostrService unfollow with mute functionality > should not add to mute list if already muted
AssertionError: expected false to be true // Object.is equality

• Expected

• Received

• true

• false

❯ test/service.unfollowMute.test.js:256:20
254| const result = await service._unfollowUser(targetPubkey);
255|
256| expect(result).toBe(true);
| ^
257| expect(publishContactsCalls.length).toBe(1);
258| // Mute list should not be published again since user is already m…

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[3/5]⎯

FAIL test/service.unfollowMute.test.js > NostrService unfollow with mute functionality > should succeed even if mute operation fails
AssertionError: expected false to be true // Object.is equality

• Expected

• Received

• true

• false

❯ test/service.unfollowMute.test.js:285:20
283|
284| // Unfollow should still succeed
285| expect(result).toBe(true);
| ^
286| expect(publishContactsCalls.length).toBe(1);
287| });

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[4/5]⎯

FAIL test/service.unfollowMute.test.js > NostrService unfollow with mute functionality > should clean up tracking data after successful unfollow
AssertionError: expected false to be true // Object.is equality

• Expected

• Received

• true

• false

❯ test/service.unfollowMute.test.js:330:20
328| const result = await service._unfollowUser(targetPubkey);
329|
330| expect(result).toBe(true);
| ^
331| expect(service.userQualityScores.has(targetPubkey)).toBe(false);
332| expect(service.userPostCounts.has(targetPubkey)).toBe(false);

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[5/5]⎯

Test Files 1 failed | 37 passed (38)
Tests 5 failed | 310 passed (315)
Start at 04:09:45
Duration 44.46s (transform 499ms, setup 2ms, collect 1.24s, tests 50.67s, environment 8ms, prepare 3.71s)

Error: Process completed with exit code 1.

[Copilot]

@copilot ⎯⎯⎯⎯⎯⎯⎯ Failed Tests 5 ⎯⎯⎯⎯⎯⎯⎯

FAIL test/service.unfollowMute.test.js > NostrService unfollow with mute functionality > should unfollow user and add to mute l...

Fixed in commit 1114993. The issue was that the mock pool.publish was declared as async, but it should be synchronous and return [Promise.resolve()] directly. This matches the signature expected by Promise.any() in contacts.js and aligns with the existing test pattern in service.contacts.test.js.