Version 0.18

[macrat]

• Support remote MCP Server #25
• feat: implement Instance Name feature #48 - Add "Instance Name" feature. The instance name will be shown in title of status page, and description of MCP tools.
• Fix buges and improve performance.

[codecov]

Codecov Report

❌ Patch coverage is 88.80866% with 62 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.70%. Comparing base (a33e450) to head (2790e21).
⚠️ Report is 38 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/testutil/store.go	0.00%	26 Missing ⚠️
cmd/ayd/server.go	38.88%	9 Missing and 2 partials ⚠️
internal/store/scanner.go	16.66%	4 Missing and 1 partial ⚠️
internal/store/store.go	88.37%	2 Missing and 3 partials ⚠️
lib-ayd/record.go	37.50%	3 Missing and 2 partials ⚠️
lib-ayd/time.go	97.10%	3 Missing and 2 partials ⚠️
internal/endpoint/mcp.go	98.68%	2 Missing and 1 partial ⚠️
internal/testutil/endpoint.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #46      +/-   ##
==========================================
+ Coverage   88.47%   88.70%   +0.22%     
==========================================
  Files          74       75       +1     
  Lines        5337     5720     +383     
==========================================
+ Hits         4722     5074     +352     
- Misses        476      500      +24     
- Partials      139      146       +7     

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[Copilot]

Pull request overview

This PR implements version 0.18 of Ayd with three major changes: adding an Instance Name feature that displays throughout the UI and MCP tools, implementing a remote MCP (Model Context Protocol) server for AI tool integration, and various bug fixes and performance improvements.

Changes:

• Added Instance Name feature that appears in page titles, status pages, and MCP tool descriptions
• Implemented comprehensive MCP server endpoint at /mcp with three tools (query_status, query_incidents, query_logs) supporting jq queries for flexible data extraction
• Refactored time parsing from string-based to optimized byte-level operations for better performance
• Fixed critical bugs including pattern comparison bug, SSH username validation, and CSV error handling

Reviewed changes

Copilot reviewed 56 out of 57 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
lib-ayd/time.go, lib-ayd/time_test.go, lib-ayd/time_internal_test.go	Major refactor of time parsing from string templates to optimized byte-level parsing with comprehensive test coverage
lib-ayd/record.go, lib-ayd/record_test.go, lib-ayd/record_fuzz_test.go	Improved UTF-8 validation and JSON encoding to handle invalid UTF-8 strings safely
internal/store/store.go, internal/store/store_test.go	Added instance name field and implemented file handle caching (100ms timeout) for better performance
internal/store/scanner.go, internal/store/scanner_test.go	Fixed buffer overflow handling in log scanner using ReadSlice + ReadBytes fallback
internal/store/pattern.go	Fixed critical bug in timePattern.Less where Hour comparison was incorrectly comparing p.Hour < p.Hour instead of p.Hour < x.Hour
internal/endpoint/mcp.go, internal/endpoint/mcp_test.go	New comprehensive MCP server with three query tools supporting jq filtering with extensive test coverage (1000+ lines)
internal/endpoint/templates.go, internal/endpoint/templates_test.go, internal/endpoint/templates/base.html	Added instance name to page titles and fixed latency_graph and extra2jsons to handle empty arrays
internal/endpoint/writer.go	Fixed flushWriter to use pointer receiver instead of value receiver
internal/endpoint/log.go, internal/endpoint/incidents.go	Added instance name support and fixed error scope in incidents.json endpoint
internal/scheme/ssh.go, internal/scheme/probe_test.go	Fixed SSH username validation to reject empty usernames (e.g., ":@example.com")
internal/scheme/http.go	Updated HTTP user agent to include version from meta package
internal/scheme/dns_test.go	Updated DNS test expectations for cloudflare nameservers
internal/query/valuematcher.go, internal/query/tokenizer.go, internal/query/query_test.go	Optimized time value matching and tokenization with byte-level operations and pre-allocation
internal/logconv/csv.go	Fixed CSV writer to return flush errors instead of ignoring them
internal/testutil/store.go, internal/testutil/endpoint.go	Refactored to use functional options pattern for better flexibility
internal/meta/version.go	New package for version and commit information, extracted from main
cmd/ayd/main.go, cmd/ayd/server.go, cmd/ayd/schedule.go	Added instance name flag (-n), version info refactoring, and interval validation
go.mod, go.sum	Added MCP SDK and gojq dependencies, updated various dependencies
Makefile, Dockerfile, .goreleaser.yml	Updated build scripts to inject version into new meta package location
README.md	Added documentation for MCP server endpoint

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