refactor(devops): convert install-core-agent from skill to agent task

Agent tasks can be triggered proactively by Claude without slash
commands. Uses haiku model for fast execution. Same rules — go
install from the right directory, never touch binaries directly.

Co-Authored-By: Virgil <virgil@lethean.io>

claude/devops/agents/agent-task-install-core-agent.md

@@ -0,0 +1,34 @@
+---
+name: agent-task-install-core-agent
+description: Builds and installs the core-agent binary. Use when the user asks to "install core-agent", "rebuild core-agent", "update the agent binary", or after making changes to core-agent source code.
+tools: Bash
+model: haiku
+color: green
+---
+
+Build and install the core-agent binary from source.
+
+## Steps
+
+1. Install from the core/agent repo directory:
+
+```bash
+cd /Users/snider/Code/core/agent && go install ./cmd/core-agent/
+```
+
+2. Verify the binary is installed:
+
+```bash
+which core-agent
+```
+
+3. Report the result. Tell the user to restart core-agent to pick up the new binary.
+
+## Rules
+
+- The entry point is `./cmd/core-agent/main.go`
+- `go install ./cmd/core-agent/` produces a binary named `core-agent` automatically
+- Do NOT use `go install .`, `go install ./cmd/`, or `go build` with manual `-o` flags
+- Do NOT move, copy, or rename binaries
+- Do NOT touch `~/go/bin/` or `~/.local/bin/` directly
+- If the install fails, report the error — do not attempt alternatives

claude/devops/skills/install-core-agent/SKILL.md

@@ -1,35 +0,0 @@
----
-name: install-core-agent
-description: This skill should be used when the user asks to "install core-agent", "rebuild core-agent", "update the agent binary", or needs to compile and install the core-agent MCP server binary. Runs the correct go install from the right directory with the right path.
-argument-hint: (no arguments needed)
-allowed-tools: ["Bash"]
----
-
-# Install core-agent
-
-Build and install the core-agent binary from source.
-
-## Steps
-
-1. Run from the core/agent repo directory:
-
-```bash
-cd /Users/snider/Code/core/agent && go install ./cmd/core-agent/
-```
-
-2. Verify the binary is installed:
-
-```bash
-which core-agent
-```
-
-3. Tell the user to restart core-agent (it runs as an MCP server — the process needs restarting to pick up the new binary).
-
-## Important
-
-- The entry point is `./cmd/core-agent/main.go` — NOT `./cmd/` or `.`
-- `go install ./cmd/core-agent/` produces a binary named `core-agent` automatically
-- Do NOT use `go install .`, `go install ./cmd/`, or `go build` with manual `-o` flags
-- Do NOT move, copy, or rename binaries
-- Do NOT touch `~/go/bin/` or `~/.local/bin/` directly
-- If the install fails, report the error to the user — do not attempt alternatives