chore: move skills and evals to plugins/bin, remove legacy root configs

Skills and evals migrated from .agents/ to plugins/bin/ plugin directory.
Remove .mcp.json, provider-manifest.sh, and skills-lock.json legacy artifacts.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/bin/evals/cross-cutting/neuledge-context/eval.yaml

@@ -0,0 +1,97 @@
+skill_name: neuledge-context
+
+trigger_tests:
+  - id: explicit-install-register
+    name: "Explicit trigger — install and register"
+    query: "install @neuledge/context and register it as an MCP server in Claude Code"
+    should_trigger: true
+
+  - id: explicit-package-management
+    name: "Explicit trigger — package management"
+    query: "install the react documentation package using neuledge context"
+    should_trigger: true
+
+  - id: implicit-offline-docs
+    name: "Implicit trigger — offline docs for AI agent"
+    query: "I need React and Next.js docs available to my AI agent without web searches"
+    should_trigger: true
+
+  - id: negative-different-mcp
+    name: "Negative — different MCP server"
+    query: "Add the Gitea MCP server to Claude Code"
+    should_trigger: false
+
+  - id: negative-query-existing
+    name: "Negative — querying an already-running server"
+    query: "How do I query React docs using the context server that's already running?"
+    should_trigger: false
+
+  - id: negative-cursor-setup
+    name: "Negative — different provider"
+    query: "Set up context serve for Cursor"
+    should_trigger: false
+
+output_tests:
+  - id: install-script-announced
+    name: "Install — script announced before running, version verified after"
+    type: deterministic
+    prompt: "install @neuledge/context"
+    expected_output: >
+      The skill announces that it will run scripts/setup-neuledge-context.sh before executing it,
+      then verifies the installation by running `context --version`.
+    assertions:
+      - "Output mentions 'scripts/setup-neuledge-context.sh' before any install command is run"
+      - "Output includes a `context --version` call after the install step"
+      - "Output does not contain `npm install -g @neuledge/context@latest` (no floating @latest)"
+
+  - id: mcp-list-before-add
+    name: "MCP registration — list checked before add, skipped if present"
+    type: deterministic
+    prompt: "register @neuledge/context as a Claude Code MCP server"
+    expected_output: >
+      The skill runs `claude mcp list` and checks for an existing 'context' entry before
+      running `claude mcp add`. If already registered, the add step is skipped.
+    assertions:
+      - "Output includes `claude mcp list` before `claude mcp add context`"
+      - "Output states that registration is skipped when the server is already present"
+      - "The `claude mcp add` command uses stdio form: `claude mcp add context -- context serve`"
+
+  - id: auth-chmod-paired
+    name: "Auth — secure-context-config.sh run immediately after auth add"
+    type: deterministic
+    prompt: "add auth credentials for docs.example.com to neuledge context"
+    expected_output: >
+      The skill runs `context auth add docs.example.com` with an environment variable reference
+      for the credential, then immediately runs scripts/secure-context-config.sh.
+      No credential value appears in the output.
+    assertions:
+      - "Output references an environment variable (e.g. $TOKEN) rather than a literal credential value"
+      - "Output runs `scripts/secure-context-config.sh` in the same step as or immediately after `context auth add`"
+      - "No bearer token, cookie value, or other credential string appears in the output"
+
+  - id: git-check-url-source
+    name: "context add — git prerequisite checked for URL sources only"
+    type: deterministic
+    prompt: "add documentation from https://github.com/prisma/prisma using context add"
+    expected_output: >
+      Before running `context add`, the skill checks `git --version` because the source is a
+      GitHub URL. The check is present for URL/repo sources and absent for local .db file paths.
+    assertions:
+      - "Output includes `git --version` before the `context add https://github.com/...` command"
+      - "If given a local .db file path instead, the git check is absent"
+
+  - id: install-flow-quality
+    name: "Full install + register flow quality"
+    type: llm-rubric
+    prompt: "install @neuledge/context and set it up as my Claude Code MCP server"
+    expected_output: >
+      A complete, ordered install-then-register flow: (1) announce the install script,
+      (2) run setup-neuledge-context.sh, (3) verify with context --version,
+      (4) check claude mcp list, (5) run claude mcp add if not already registered,
+      (6) confirm with claude mcp list. Steps are in the correct order with verification
+      between install and registration.
+    assertions:
+      - "Install step comes before MCP registration step"
+      - "A verification command (context --version) appears between install and registration"
+      - "The output would leave a user with a working @neuledge/context MCP server in Claude Code"
+      - "No step is skipped without an explanation of why it was skipped"