build(deps-dev): bump rails-ai-context from 5.11.2 to 5.12.0

[dependabot]

Bumps rails-ai-context from 5.11.2 to 5.12.0.

Release notes

Sourced from rails-ai-context's releases.

v5.12.0

Fixed

Live-usage audit of the full MCP surface (all 38 tools over stdio + HTTP, the CLI tool runner, and the 9 resources / 5 resource templates) against a real Rails 8 app surfaced 15 correctness and edge-case defects, now fixed:

• rails_get_schema (and every schema-backed tool) now reads the live database. The schema introspector treated ActiveRecord::Base.connected? as "is a DB reachable", but that is false on a freshly booted server before any query runs, so it silently fell back to static schema.rb parsing -- which omits the implicit id primary key and reports schema.rb-approximate types. It now probes the connection (SELECT 1) and uses live column metadata, falling back to static parsing only when the database is genuinely unreachable. rails_get_model_details, rails_get_context, rails_get_controllers schema hints, and rails_analyze_feature all benefit.
• rails_get_view resolves a logical controller/action path (e.g. posts/index) to its template instead of reporting "View not found" for a file it then lists in the same hint.
• rails_diagnose classifies Ruby 3.4+ undefined method 'x' for an instance of Y errors (and other bare, class-prefix-less messages) by inferring the exception class from the message signature.
• rails_get_turbo_map now reports .turbo_stream.erb response templates and their stream actions. Apps using the common scaffold-style Turbo Stream pattern no longer show "No Turbo Streams or Frames detected".
• rails_get_partial_interface detects implicit object/collection render sites (render @post, render post, render @posts), not just explicit render "posts/post" calls.
• rails_get_controllers and rails_analyze_feature no longer list an inherited before_action twice (once as inherited, once from the reflection-derived full chain).
• rails_runtime_info "Table Sizes" lists real application tables instead of SQLite internal objects (sqlite_schema, sqlite_autoindex_*, sqlite_sequence) and index b-trees that were crowding out the app tables.
• rails_get_gems strips the platform suffix from versions (sqlite3 2.9.5, not sqlite3 2.9.5-x86_64-linux-musl) on multi-platform lockfiles.
• rails_get_test_info falls back to Gemfile.lock to report the test framework (minitest/rspec) when no test/ or spec/ directory exists yet, instead of "unknown".
• rails_get_frontend_stack no longer renders a literal [] for empty state-management data.
• rails_onboard reports the app route count instead of pairing the framework-inclusive total with the app-controller count ("14 app routes across 3 controllers", not "46 routes across 3 controllers").
• MCP resources return a proper -32602 Resource not found: <uri> for unknown URIs and blocked paths instead of a generic "Internal error" with the URI stripped (on mcp >= 0.20; older mcp keeps prior behavior). Path traversal and sensitive-file access remain blocked.
• CLI --json flag is honored in any position (tool NAME args --json), not only before the tool name.
• CLI presets (architecture, debugging, migration) now chain tools that produce useful output with zero arguments, instead of calling tools whose required arguments were never supplied.
• Standalone/zero-config CLI on Ruby 3.4+ no longer crashes with Gem::LoadError: already activated psych 5.4.0, but your Gemfile requires psych 5.3.1 (or the equivalent for date). The standalone executable pre-activates Ruby 3.4's newer default-gem versions before the app's Bundler.setup runs; it now clears those pre-activated specs first so Bundler activates the versions the app resolves. No-op under bundle exec (in-Gemfile mode is unaffected).

Changelog

Sourced from rails-ai-context's changelog.

[5.12.0] - 2026-06-29

Fixed

Live-usage audit of the full MCP surface (all 38 tools over stdio + HTTP, the CLI tool runner, and the 9 resources / 5 resource templates) against a real Rails 8 app surfaced 15 correctness and edge-case defects, now fixed:

• rails_get_schema (and every schema-backed tool) now reads the live database. The schema introspector treated ActiveRecord::Base.connected? as "is a DB reachable", but that is false on a freshly booted server before any query runs, so it silently fell back to static schema.rb parsing -- which omits the implicit id primary key and reports schema.rb-approximate types. It now probes the connection (SELECT 1) and uses live column metadata, falling back to static parsing only when the database is genuinely unreachable. rails_get_model_details, rails_get_context, rails_get_controllers schema hints, and rails_analyze_feature all benefit.
• rails_get_view resolves a logical controller/action path (e.g. posts/index) to its template instead of reporting "View not found" for a file it then lists in the same hint.
• rails_diagnose classifies Ruby 3.4+ undefined method 'x' for an instance of Y errors (and other bare, class-prefix-less messages) by inferring the exception class from the message signature.
• rails_get_turbo_map now reports .turbo_stream.erb response templates and their stream actions. Apps using the common scaffold-style Turbo Stream pattern no longer show "No Turbo Streams or Frames detected".
• rails_get_partial_interface detects implicit object/collection render sites (render @post, render post, render @posts), not just explicit render "posts/post" calls.
• rails_get_controllers and rails_analyze_feature no longer list an inherited before_action twice (once as inherited, once from the reflection-derived full chain).
• rails_runtime_info "Table Sizes" lists real application tables instead of SQLite internal objects (sqlite_schema, sqlite_autoindex_*, sqlite_sequence) and index b-trees that were crowding out the app tables.
• rails_get_gems strips the platform suffix from versions (sqlite3 2.9.5, not sqlite3 2.9.5-x86_64-linux-musl) on multi-platform lockfiles.
• rails_get_test_info falls back to Gemfile.lock to report the test framework (minitest/rspec) when no test/ or spec/ directory exists yet, instead of "unknown".
• rails_get_frontend_stack no longer renders a literal [] for empty state-management data.
• rails_onboard reports the app route count instead of pairing the framework-inclusive total with the app-controller count ("14 app routes across 3 controllers", not "46 routes across 3 controllers").
• MCP resources return a proper -32602 Resource not found: <uri> for unknown URIs and blocked paths instead of a generic "Internal error" with the URI stripped (on mcp >= 0.20; older mcp keeps prior behavior). Path traversal and sensitive-file access remain blocked.
• CLI --json flag is honored in any position (tool NAME args --json), not only before the tool name.
• CLI presets (architecture, debugging, migration) now chain tools that produce useful output with zero arguments, instead of calling tools whose required arguments were never supplied.
• Standalone/zero-config CLI on Ruby 3.4+ no longer crashes with Gem::LoadError: already activated psych 5.4.0, but your Gemfile requires psych 5.3.1 (or the equivalent for date). The standalone executable pre-activates Ruby 3.4's newer default-gem versions before the app's Bundler.setup runs; it now clears those pre-activated specs first so Bundler activates the versions the app resolves. No-op under bundle exec (in-Gemfile mode is unaffected).

Commits

• 6d497a1 fix: clear pre-activated gem specs before Bundler.setup in standalone mode
• 644fa09 chore: release v5.12.0 -- 15 MCP/CLI edge-case fixes from live-usage audit
• See full diff in compare view

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