diff --git a/.opencode/plugins/tools/git-worktree-create.ts b/.opencode/plugins/tools/git-worktree-create.ts
new file mode 100644
index 0000000..b4c137f
--- /dev/null
+++ b/.opencode/plugins/tools/git-worktree-create.ts
@@ -0,0 +1,22 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const gitWorktreeCreate: Info = {
+  name: "git-worktree-create",
+  description: "Create a git worktree for a branch or PR",
+  input: {
+    type: "object",
+    properties: {
+      branch: { type: "string", description: "Branch name or PR number" },
+    },
+    required: ["branch"],
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { branch } = input as { branch: string }
+    const result = await $`git worktree add ../worktrees/${branch}`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default gitWorktreeCreate
diff --git a/.opencode/plugins/tools/index.ts b/.opencode/plugins/tools/index.ts
new file mode 100644
index 0000000..f7f30ab
--- /dev/null
+++ b/.opencode/plugins/tools/index.ts
@@ -0,0 +1,30 @@
+import { Plugin } from "@opencode/plugin"
+
+import gitWorktreeCreate from "./git-worktree-create.js"
+import teaActionsRunsList from "./tea-actions-runs-list.js"
+import teaActionsRunsLogs from "./tea-actions-runs-logs.js"
+import teaComment from "./tea-comment.js"
+import teaIssueCreate from "./tea-issue-create.js"
+import teaIssueGet from "./tea-issue-get.js"
+import teaIssues from "./tea-issues.js"
+import teaPrCreate from "./tea-pr-create.js"
+import teaPrGet from "./tea-pr-get.js"
+import teaPulls from "./tea-pulls.js"
+
+export default Plugin.define({
+  id: "tools",
+  async setup(ctx) {
+    await ctx.tool.transform((editor) => {
+      editor.add(gitWorktreeCreate)
+      editor.add(teaActionsRunsList)
+      editor.add(teaActionsRunsLogs)
+      editor.add(teaComment)
+      editor.add(teaIssueCreate)
+      editor.add(teaIssueGet)
+      editor.add(teaIssues)
+      editor.add(teaPrCreate)
+      editor.add(teaPrGet)
+      editor.add(teaPulls)
+    })
+  },
+})
diff --git a/.opencode/plugins/tools/tea-actions-runs-list.ts b/.opencode/plugins/tools/tea-actions-runs-list.ts
new file mode 100644
index 0000000..d3bc895
--- /dev/null
+++ b/.opencode/plugins/tools/tea-actions-runs-list.ts
@@ -0,0 +1,37 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaActionsRunsList: Info = {
+  name: "tea-actions-runs-list",
+  description: "List workflow runs for Gitea actions with optional filters",
+  input: {
+    type: "object",
+    properties: {
+      status: { type: "string", description: "Filter by status (success, failure, pending, queued, in_progress, skipped, canceled)" },
+      branch: { type: "string", description: "Filter by branch name" },
+      event: { type: "string", description: "Filter by event type (push, pull_request, etc.)" },
+      limit: { type: "number", description: "Number of results to return (default: 30)" },
+      since: { type: "string", description: "Show runs started after this time (e.g., '24h', '7d')" },
+    },
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { status, branch, event, limit, since } = input as {
+      status?: string
+      branch?: string
+      event?: string
+      limit?: number
+      since?: string
+    }
+    let cmd = [`tea`, `actions`, `runs`, `list`, `-o`, `json`]
+    if (status) cmd = [...cmd, `--status`, status]
+    if (branch) cmd = [...cmd, `--branch`, branch]
+    if (event) cmd = [...cmd, `--event`, event]
+    if (limit) cmd = [...cmd, `--limit`, String(limit)]
+    if (since) cmd = [...cmd, `--since`, since]
+    const result = await $`${cmd}`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaActionsRunsList
diff --git a/.opencode/plugins/tools/tea-actions-runs-logs.ts b/.opencode/plugins/tools/tea-actions-runs-logs.ts
new file mode 100644
index 0000000..7120681
--- /dev/null
+++ b/.opencode/plugins/tools/tea-actions-runs-logs.ts
@@ -0,0 +1,26 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaActionsRunsLogs: Info = {
+  name: "tea-actions-runs-logs",
+  description: "Get logs for a specific Gitea actions workflow run to diagnose failures",
+  input: {
+    type: "object",
+    properties: {
+      runId: { type: "number", description: "Workflow run ID to get logs for" },
+      job: { type: "string", description: "Specific job ID to view (if omitted, shows all jobs)" },
+    },
+    required: ["runId"],
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { runId, job } = input as { runId: number; job?: string }
+    let cmd = [`tea`, `actions`, `runs`, `logs`]
+    if (job) cmd = [...cmd, `--job`, job]
+    cmd = [...cmd, String(runId), `-o`, `simple`]
+    const result = await $`${cmd}`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaActionsRunsLogs
diff --git a/.opencode/plugins/tools/tea-comment.ts b/.opencode/plugins/tools/tea-comment.ts
new file mode 100644
index 0000000..37db48f
--- /dev/null
+++ b/.opencode/plugins/tools/tea-comment.ts
@@ -0,0 +1,23 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaComment: Info = {
+  name: "tea-comment",
+  description: "Add a comment to a specific issue using tea CLI",
+  input: {
+    type: "object",
+    properties: {
+      issueNumber: { type: "number", description: "Issue number/index" },
+      body: { type: "string", description: "Comment body" },
+    },
+    required: ["issueNumber", "body"],
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { issueNumber, body } = input as { issueNumber: number; body: string }
+    const result = await $`tea comment ${issueNumber} ${body}`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaComment
diff --git a/.opencode/plugins/tools/tea-issue-create.ts b/.opencode/plugins/tools/tea-issue-create.ts
new file mode 100644
index 0000000..473ac39
--- /dev/null
+++ b/.opencode/plugins/tools/tea-issue-create.ts
@@ -0,0 +1,23 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaIssueCreate: Info = {
+  name: "tea-issue-create",
+  description: "Create a new issue in the GitHub repository using tea CLI",
+  input: {
+    type: "object",
+    properties: {
+      title: { type: "string", description: "Issue title" },
+      description: { type: "string", description: "Issue description (supports markdown)" },
+    },
+    required: ["title"],
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { title, description } = input as { title: string; description?: string }
+    const result = await $`tea issues create -t ${title} -d ${description}`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaIssueCreate
diff --git a/.opencode/plugins/tools/tea-issue-get.ts b/.opencode/plugins/tools/tea-issue-get.ts
new file mode 100644
index 0000000..ad9bdd3
--- /dev/null
+++ b/.opencode/plugins/tools/tea-issue-get.ts
@@ -0,0 +1,22 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaIssueGet: Info = {
+  name: "tea-issue-get",
+  description: "Get a specific issue with all details and comments using tea CLI",
+  input: {
+    type: "object",
+    properties: {
+      issueNumber: { type: "number", description: "Issue number/index" },
+    },
+    required: ["issueNumber"],
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { issueNumber } = input as { issueNumber: number }
+    const result = await $`tea issues ${issueNumber} --comments --output json`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaIssueGet
diff --git a/.opencode/plugins/tools/tea-issues.ts b/.opencode/plugins/tools/tea-issues.ts
new file mode 100644
index 0000000..9bc3988
--- /dev/null
+++ b/.opencode/plugins/tools/tea-issues.ts
@@ -0,0 +1,18 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaIssues: Info = {
+  name: "tea-issues",
+  description: "List all issues in the project using tea CLI",
+  input: {
+    type: "object",
+    properties: {},
+    additionalProperties: false,
+  },
+  async execute() {
+    const result = await $`tea issues list`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaIssues
diff --git a/.opencode/plugins/tools/tea-pr-create.ts b/.opencode/plugins/tools/tea-pr-create.ts
new file mode 100644
index 0000000..63abf06
--- /dev/null
+++ b/.opencode/plugins/tools/tea-pr-create.ts
@@ -0,0 +1,40 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaPrCreate: Info = {
+  name: "tea-pr-create",
+  description: "Create a pull request in the repository using tea CLI",
+  input: {
+    type: "object",
+    properties: {
+      title: { type: "string", description: "PR title" },
+      head: { type: "string", description: "Branch name of the PR source (defaults to current branch)" },
+      base: { type: "string", description: "Branch name of the PR target (defaults to repository default branch)" },
+      description: { type: "string", description: "PR description (supports markdown)" },
+      assignees: { type: "string", description: "Comma-separated list of usernames to assign" },
+      labels: { type: "string", description: "Comma-separated list of labels to assign" },
+    },
+    required: ["title"],
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { title, head, base, description, assignees, labels } = input as {
+      title: string
+      head?: string
+      base?: string
+      description?: string
+      assignees?: string
+      labels?: string
+    }
+    let cmd = [`tea`, `pulls`, `create`, `-t`, title]
+    if (head) cmd = [...cmd, `--head`, head]
+    if (base) cmd = [...cmd, `-b`, base]
+    if (description) cmd = [...cmd, `-d`, description]
+    if (assignees) cmd = [...cmd, `-a`, assignees]
+    if (labels) cmd = [...cmd, `-L`, labels]
+    const result = await $`${cmd}`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaPrCreate
diff --git a/.opencode/plugins/tools/tea-pr-get.ts b/.opencode/plugins/tools/tea-pr-get.ts
new file mode 100644
index 0000000..a54014e
--- /dev/null
+++ b/.opencode/plugins/tools/tea-pr-get.ts
@@ -0,0 +1,22 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaPrGet: Info = {
+  name: "tea-pr-get",
+  description: "Get a specific pull request with all details and comments using tea CLI",
+  input: {
+    type: "object",
+    properties: {
+      pullNumber: { type: "number", description: "Pull request number/index" },
+    },
+    required: ["pullNumber"],
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const { pullNumber } = input as { pullNumber: number }
+    const result = await $`tea pulls ${pullNumber} --comments --output json`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaPrGet
diff --git a/.opencode/plugins/tools/tea-pulls.ts b/.opencode/plugins/tools/tea-pulls.ts
new file mode 100644
index 0000000..d4f27aa
--- /dev/null
+++ b/.opencode/plugins/tools/tea-pulls.ts
@@ -0,0 +1,21 @@
+import { $ } from "bun"
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const teaPulls: Info = {
+  name: "tea-pulls",
+  description: "List pull requests in the repository using tea CLI",
+  input: {
+    type: "object",
+    properties: {
+      state: { type: "string", description: "Filter by state (all|open|closed)" },
+    },
+    additionalProperties: false,
+  },
+  async execute(input) {
+    const state = (input as { state?: string }).state || "open"
+    const result = await $`tea pulls --state ${state} --output json`.text()
+    return { content: result.trim() }
+  },
+}
+
+export default teaPulls
diff --git a/.opencode/tools/git-worktree-create.ts b/.opencode/tools/git-worktree-create.ts
deleted file mode 100644
index d0a89a8..0000000
--- a/.opencode/tools/git-worktree-create.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "Create a git worktree for a branch or PR",
-  args: {
-    branch: tool.schema.string().describe("Branch name or PR number"),
-  },
-  async execute(args) {
-    const result = await $`git worktree add ../worktrees/${args.branch}`.text()
-    return result.trim()
-  },
-})
\ No newline at end of file
diff --git a/.opencode/tools/tea-actions-runs-list.ts b/.opencode/tools/tea-actions-runs-list.ts
deleted file mode 100644
index 1bd8784..0000000
--- a/.opencode/tools/tea-actions-runs-list.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "List workflow runs for Gitea actions with optional filters",
-  args: {
-    status: tool.schema.string().optional().describe("Filter by status (success, failure, pending, queued, in_progress, skipped, canceled)"),
-    branch: tool.schema.string().optional().describe("Filter by branch name"),
-    event: tool.schema.string().optional().describe("Filter by event type (push, pull_request, etc.)"),
-    limit: tool.schema.number().optional().describe("Number of results to return (default: 30)"),
-    since: tool.schema.string().optional().describe("Show runs started after this time (e.g., '24h', '7d')"),
-  },
-  async execute(args) {
-    let cmd = [`tea`, `actions`, `runs`, `list`, `-o`, `json`]
-    if (args.status) cmd = [...cmd, `--status`, args.status]
-    if (args.branch) cmd = [...cmd, `--branch`, args.branch]
-    if (args.event) cmd = [...cmd, `--event`, args.event]
-    if (args.limit) cmd = [...cmd, `--limit`, String(args.limit)]
-    if (args.since) cmd = [...cmd, `--since`, args.since]
-    const result = await $`${cmd}`.text()
-    return result.trim()
-  },
-})
diff --git a/.opencode/tools/tea-actions-runs-logs.ts b/.opencode/tools/tea-actions-runs-logs.ts
deleted file mode 100644
index 1f3354c..0000000
--- a/.opencode/tools/tea-actions-runs-logs.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "Get logs for a specific Gitea actions workflow run to diagnose failures",
-  args: {
-    runId: tool.schema.number().describe("Workflow run ID to get logs for"),
-    job: tool.schema.string().optional().describe("Specific job ID to view (if omitted, shows all jobs)"),
-  },
-  async execute(args) {
-    let cmd = [`tea`, `actions`, `runs`, `logs`]
-    if (args.job) cmd = [...cmd, `--job`, args.job]
-    cmd = [...cmd, String(args.runId), `-o`, `simple`]
-    const result = await $`${cmd}`.text()
-    return result.trim()
-  },
-})
diff --git a/.opencode/tools/tea-comment.ts b/.opencode/tools/tea-comment.ts
deleted file mode 100644
index c1e697c..0000000
--- a/.opencode/tools/tea-comment.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "Add a comment to a specific issue using tea CLI",
-  args: {
-    issueNumber: tool.schema.number().describe("Issue number/index"),
-    body: tool.schema.string().describe("Comment body"),
-  },
-  async execute(args) {
-    const result = await $`tea comment ${args.issueNumber} ${args.body}`.text()
-    return result.trim()
-  },
-})
\ No newline at end of file
diff --git a/.opencode/tools/tea-issue-create.ts b/.opencode/tools/tea-issue-create.ts
deleted file mode 100644
index e80bf62..0000000
--- a/.opencode/tools/tea-issue-create.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "Create a new issue in the GitHub repository using tea CLI",
-  args: {
-    title: tool.schema.string().describe("Issue title"),
-    description: tool.schema.string().optional().describe("Issue description (supports markdown)"),
-  },
-  async execute(args) {
-    const result = await $`tea issues create -t ${args.title} -d ${args.description}`.text()
-    return result.trim()
-  },
-})
\ No newline at end of file
diff --git a/.opencode/tools/tea-issue-get.ts b/.opencode/tools/tea-issue-get.ts
deleted file mode 100644
index c969496..0000000
--- a/.opencode/tools/tea-issue-get.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "Get a specific issue with all details and comments using tea CLI",
-  args: {
-    issueNumber: tool.schema.number().describe("Issue number/index"),
-  },
-  async execute(args) {
-    const result = await $`tea issues ${args.issueNumber} --comments --output json`.text()
-    return result.trim()
-  },
-})
\ No newline at end of file
diff --git a/.opencode/tools/tea-issues.ts b/.opencode/tools/tea-issues.ts
deleted file mode 100644
index 46a3c71..0000000
--- a/.opencode/tools/tea-issues.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "List all issues in the project using tea CLI",
-  args: {},
-  async execute(args, context) {
-    const result = await $`tea issues list`.text()
-    return result.trim()
-  },
-})
\ No newline at end of file
diff --git a/.opencode/tools/tea-pr-create.ts b/.opencode/tools/tea-pr-create.ts
deleted file mode 100644
index 5f3dc3c..0000000
--- a/.opencode/tools/tea-pr-create.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "Create a pull request in the repository using tea CLI",
-  args: {
-    title: tool.schema.string().describe("PR title"),
-    head: tool.schema.string().optional().describe("Branch name of the PR source (defaults to current branch)"),
-    base: tool.schema.string().optional().describe("Branch name of the PR target (defaults to repository default branch)"),
-    description: tool.schema.string().optional().describe("PR description (supports markdown)"),
-    assignees: tool.schema.string().optional().describe("Comma-separated list of usernames to assign"),
-    labels: tool.schema.string().optional().describe("Comma-separated list of labels to assign"),
-  },
-  async execute(args) {
-    let cmd = [`tea`, `pulls`, `create`, `-t`, args.title]
-    if (args.head) cmd = [...cmd, `--head`, args.head]
-    if (args.base) cmd = [...cmd, `-b`, args.base]
-    if (args.description) cmd = [...cmd, `-d`, args.description]
-    if (args.assignees) cmd = [...cmd, `-a`, args.assignees]
-    if (args.labels) cmd = [...cmd, `-L`, args.labels]
-    const result = await $`${cmd}`.text()
-    return result.trim()
-  },
-})
diff --git a/.opencode/tools/tea-pr-get.ts b/.opencode/tools/tea-pr-get.ts
deleted file mode 100644
index 4cd47a5..0000000
--- a/.opencode/tools/tea-pr-get.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "Get a specific pull request with all details and comments using tea CLI",
-  args: {
-    pullNumber: tool.schema.number().describe("Pull request number/index"),
-  },
-  async execute(args) {
-    const result = await $`tea pulls ${args.pullNumber} --comments --output json`.text()
-    return result.trim()
-  },
-})
diff --git a/.opencode/tools/tea-pulls.ts b/.opencode/tools/tea-pulls.ts
deleted file mode 100644
index 0f43194..0000000
--- a/.opencode/tools/tea-pulls.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import { tool } from "@opencode-ai/plugin"
-import { $ } from "bun"
-
-export default tool({
-  description: "List pull requests in the repository using tea CLI",
-  args: {
-    state: tool.schema.string().optional().describe("Filter by state (all|open|closed)"),
-  },
-  async execute(args) {
-    const state = args.state || "open"
-    const result = await $`tea pulls --state ${state} --output json`.text()
-    return result.trim()
-  },
-})
diff --git a/Makefile b/Makefile
index 856e427..bf6bb54 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ OPENCODE_DIR := $(HOME)/.config/opencode
 REPO_DIR := $(shell pwd)
 
 # Items to symlink
-ITEMS := skills tools agents AGENTS.md
+ITEMS := skills plugins agents AGENTS.md
 
 # LLM services to manage
 LLM_SERVICES := qwen qwen-4bit
diff --git a/README.md b/README.md
index 39f01eb..5c0cfa9 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ OpenCode uses three component types:
 | Component | Location | Purpose | Example |
 |-----------|----------|---------|---------|
 | **Skills** | `.opencode/skills/` | Reference knowledge | `issue-writing` knows how to structure good issues |
-| **Tools** | `.opencode/tools/` | Custom functions | `spawn_issues` implements multiple issues in parallel |
+| **Tools** | `.opencode/plugins/` | Custom functions, provided by plugins | `tools` registers the `tea-*` Gitea CLI tools |
 | **Agents** | `.opencode/agents/` | Specialized subagents | `code-reviewer` handles PR reviews |
 
 ## Quick Start
@@ -29,7 +29,7 @@ make install
 
 This creates symlinks at:
 - `~/.config/opencode/skills/` → `.opencode/skills/`
-- `~/.config/opencode/tools/` → `.opencode/tools/`
+- `~/.config/opencode/plugins/` → `.opencode/plugins/`
 - `~/.config/opencode/agents/` → `.opencode/agents/`
 
 ### Uninstallation
@@ -67,7 +67,7 @@ architecture/
 │
 ├── .opencode/                  # OpenCode configuration
 │   ├── skills/                 # Reference knowledge (SKILL.md files)
-│   ├── tools/                  # Custom tools (TypeScript/JS)
+│   ├── plugins/                # Plugins registering custom tools (TypeScript)
 │   └── agents/                 # Specialized subagents (AGENT.md files)
 │
 ├── Makefile                    # Symlink management
@@ -96,24 +96,42 @@ Skills are auto-discovered by OpenCode and available via the `skill` tool.
 
 ### Tools
 
-Create `.opencode/tools/<name>.ts`:
+Tools are registered by plugins under `.opencode/plugins/`. Create `.opencode/plugins/<name>/index.ts`:
 
 ```typescript
-import { tool } from "@opencode-ai/plugin"
+import { Plugin } from "@opencode/plugin"
 
-export default tool({
+import type { Info } from "@opencode/plugin/promise/tool"
+
+const example: Info = {
+  name: "example",
   description: "What this tool does",
-  args: {
-    param: tool.schema.string().describe("Parameter description"),
+  input: {
+    type: "object",
+    properties: {
+      param: { type: "string", description: "Parameter description" },
+    },
+    required: ["param"],
+    additionalProperties: false,
   },
-  async execute(args) {
+  async execute(input) {
+    const { param } = input as { param: string }
     // Your implementation
-    return "result"
+    return { content: `result for ${param}` }
+  },
+}
+
+export default Plugin.define({
+  id: "example",
+  async setup(ctx) {
+    await ctx.tool.transform((editor) => {
+      editor.add(example)
+    })
   },
 })
 ```
 
-Tools are auto-discovered and available to the LLM.
+Tool input schemas are plain JSON Schema, and execution returns structured content. Plugins under `.opencode/plugins/` are auto-discovered and their tools are available to the LLM.
 
 ### Agents