fix: stabilize opencode declarations across package managers

.opencode/plugins/ecc-hooks.ts

@@ -23,7 +23,9 @@ import {
 } from "./lib/changed-files-store.js"
 import changedFilesTool from "../tools/changed-files.js"
 
-export const ECCHooksPlugin = async ({
+type ECCHooksPluginFn = (input: PluginInput) => Promise<Record<string, unknown>>
+
+export const ECCHooksPlugin: ECCHooksPluginFn = async ({
   client,
   $,
   directory,

.opencode/tools/changed-files.ts

@@ -1,4 +1,4 @@
-import { tool } from "@opencode-ai/plugin/tool"
+import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import {
   buildTree,
   getChangedPaths,
@@ -26,7 +26,7 @@ function renderTree(nodes: TreeNode[], indent: string): string {
   return lines.join("\n")
 }
 
-export default tool({
+const changedFilesTool: ToolDefinition = tool({
   description:
     "List files changed by agents in this session as a navigable tree. Shows added (+), modified (~), and deleted (-) indicators. Use filter to show only specific change types. Returns paths for git diff.",
   args: {
@@ -79,3 +79,5 @@ export default tool({
     return output
   },
 })
+
+export default changedFilesTool

.opencode/tools/check-coverage.ts

@@ -5,11 +5,11 @@
  * Supports common coverage report formats.
  */
 
-import { tool } from "@opencode-ai/plugin/tool"
+import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import * as path from "path"
 import * as fs from "fs"
 
-export default tool({
+const checkCoverageTool: ToolDefinition = tool({
   description:
     "Check test coverage against a threshold and identify files with low coverage. Reads coverage reports from common locations.",
   args: {
@@ -100,6 +100,8 @@ export default tool({
   },
 })
 
+export default checkCoverageTool
+
 interface CoverageSummary {
   total: {
     lines: number

.opencode/tools/format-code.ts

@@ -5,13 +5,13 @@
  * This avoids shell execution assumptions while still giving precise guidance.
  */
 
-import { tool } from "@opencode-ai/plugin/tool"
+import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import * as path from "path"
 import * as fs from "fs"
 
 type Formatter = "biome" | "prettier" | "black" | "gofmt" | "rustfmt"
 
-export default tool({
+const formatCodeTool: ToolDefinition = tool({
   description:
     "Detect formatter for a file and return the exact command to run (Biome, Prettier, Black, gofmt, rustfmt).",
   args: {
@@ -43,6 +43,8 @@ export default tool({
   },
 })
 
+export default formatCodeTool
+
 function detectFormatter(cwd: string, ext: string): Formatter | null {
   if (["ts", "tsx", "js", "jsx", "json", "css", "scss", "md", "yaml", "yml"].includes(ext)) {
     if (fs.existsSync(path.join(cwd, "biome.json")) || fs.existsSync(path.join(cwd, "biome.jsonc"))) {

.opencode/tools/git-summary.ts

@@ -4,10 +4,10 @@
  * Returns branch/status/log/diff details for the active repository.
  */
 
-import { tool } from "@opencode-ai/plugin/tool"
+import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import { execSync } from "child_process"
 
-export default tool({
+const gitSummaryTool: ToolDefinition = tool({
   description:
     "Generate git summary with branch, status, recent commits, and optional diff stats.",
   args: {
@@ -45,6 +45,8 @@ export default tool({
   },
 })
 
+export default gitSummaryTool
+
 function run(command: string, cwd: string): string {
   try {
     return execSync(command, { cwd, encoding: "utf-8", stdio: ["ignore", "pipe", "pipe"] }).trim()

.opencode/tools/lint-check.ts

@@ -4,13 +4,13 @@
  * Detects the appropriate linter and returns a runnable lint command.
  */
 
-import { tool } from "@opencode-ai/plugin/tool"
+import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import * as path from "path"
 import * as fs from "fs"
 
 type Linter = "biome" | "eslint" | "ruff" | "pylint" | "golangci-lint"
 
-export default tool({
+const lintCheckTool: ToolDefinition = tool({
   description:
     "Detect linter for a target path and return command for check/fix runs.",
   args: {
@@ -43,6 +43,8 @@ export default tool({
   },
 })
 
+export default lintCheckTool
+
 function detectLinter(cwd: string): Linter {
   if (fs.existsSync(path.join(cwd, "biome.json")) || fs.existsSync(path.join(cwd, "biome.jsonc"))) {
     return "biome"

.opencode/tools/run-tests.ts

@@ -5,11 +5,11 @@
  * Automatically detects the package manager and test framework.
  */
 
-import { tool } from "@opencode-ai/plugin/tool"
+import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import * as path from "path"
 import * as fs from "fs"
 
-export default tool({
+const runTestsTool: ToolDefinition = tool({
   description:
     "Run the test suite with optional coverage, watch mode, or specific test patterns. Automatically detects package manager (npm, pnpm, yarn, bun) and test framework.",
   args: {
@@ -97,6 +97,8 @@ export default tool({
   },
 })
 
+export default runTestsTool
+
 async function detectPackageManager(cwd: string): Promise<string> {
   const lockFiles: Record<string, string> = {
     "bun.lockb": "bun",

.opencode/tools/security-audit.ts

@@ -8,11 +8,11 @@
  * The regex patterns below are used to DETECT potential issues in user code.
  */
 
-import { tool } from "@opencode-ai/plugin/tool"
+import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import * as path from "path"
 import * as fs from "fs"
 
-export default tool({
+const securityAuditTool: ToolDefinition = tool({
   description:
     "Run a comprehensive security audit including dependency vulnerabilities, secret scanning, and common security issues.",
   args: {
@@ -106,6 +106,8 @@ export default tool({
   },
 })
 
+export default securityAuditTool
+
 interface AuditCheck {
   name: string
   description: string