fix: enforce directory param in skill resolution, replace legacy k2p5 model ID

- Make directory required in SkillLoadOptions, getAllSkills, and async
  skill template resolvers to prevent unsafe process.cwd() fallback
- Remove dead skill export and process.cwd() fallback in skill tool
- Replace kimi-for-coding/k2p5 with kimi-for-coding/kimi-k2.5 in
  council-members-generator

src/features/opencode-skill-loader/skill-content.test.ts

@@ -185,7 +185,7 @@ describe("resolveMultipleSkillsAsync", () => {
 		const skillNames = ["playwright", "git-master"]
 
 		// when: resolving multiple skills async
-		const result = await resolveMultipleSkillsAsync(skillNames)
+		const result = await resolveMultipleSkillsAsync(skillNames, { directory: process.cwd() })
 
 		// then: all builtin skills resolved
 		expect(result.resolved.size).toBe(2)
@@ -199,7 +199,7 @@ describe("resolveMultipleSkillsAsync", () => {
 		const skillNames = ["playwright", "nonexistent-skill-12345"]
 
 		// when: resolving multiple skills async
-		const result = await resolveMultipleSkillsAsync(skillNames)
+		const result = await resolveMultipleSkillsAsync(skillNames, { directory: process.cwd() })
 
 		// then: existing skills resolved, non-existing in notFound
 		expect(result.resolved.size).toBe(1)
@@ -289,7 +289,7 @@ describe("resolveMultipleSkillsAsync", () => {
 		const skillNames = ["git-master"]
 
 		// when: resolving without any gitMasterConfig
-		const result = await resolveMultipleSkillsAsync(skillNames)
+		const result = await resolveMultipleSkillsAsync(skillNames, { directory: process.cwd() })
 
 		// then: watermark is injected (default is ON)
 		expect(result.resolved.size).toBe(1)
@@ -363,7 +363,7 @@ describe("resolveMultipleSkillsAsync", () => {
 		const skillNames: string[] = []
 
 		// when: resolving multiple skills async
-		const result = await resolveMultipleSkillsAsync(skillNames)
+		const result = await resolveMultipleSkillsAsync(skillNames, { directory: process.cwd() })
 
 		// then: empty results
 		expect(result.resolved.size).toBe(0)

src/features/opencode-skill-loader/skill-discovery.ts

@@ -9,8 +9,8 @@ export function clearSkillCache(): void {
 	skillCache.clear()
 }
 
-export async function getAllSkills(options?: SkillResolutionOptions): Promise<LoadedSkill[]> {
-	const directory = options?.directory ?? process.cwd()
+export async function getAllSkills(options: SkillResolutionOptions & { directory: string }): Promise<LoadedSkill[]> {
+	const directory = options.directory
 	const cacheKey = `${options?.browserProvider ?? "playwright"}:${directory}`
 	const hasDisabledSkills = options?.disabledSkills && options.disabledSkills.size > 0
 

src/features/opencode-skill-loader/skill-resolution-options.ts

@@ -4,6 +4,6 @@ export interface SkillResolutionOptions {
 	gitMasterConfig?: GitMasterConfig
 	browserProvider?: BrowserAutomationProvider
 	disabledSkills?: Set<string>
-	/** Project directory to discover project-level skills from. Falls back to process.cwd() if not provided. */
+	/** Project directory to discover project-level skills from. Required for async resolution — process.cwd() is unsafe in OpenCode. */
 	directory?: string
 }

src/features/opencode-skill-loader/skill-template-resolver.ts

@@ -51,7 +51,7 @@ export function resolveMultipleSkills(
 
 export async function resolveSkillContentAsync(
 	skillName: string,
-	options?: SkillResolutionOptions
+	options: SkillResolutionOptions & { directory: string }
 ): Promise<string | null> {
 	const allSkills = await getAllSkills(options)
 	const skill = allSkills.find((loadedSkill) => loadedSkill.name === skillName)
@@ -68,7 +68,7 @@ export async function resolveSkillContentAsync(
 
 export async function resolveMultipleSkillsAsync(
 	skillNames: string[],
-	options?: SkillResolutionOptions
+	options: SkillResolutionOptions & { directory: string }
 ): Promise<{ resolved: Map<string, string>; notFound: string[] }> {
 	const allSkills = await getAllSkills(options)
 	const skillMap = new Map<string, LoadedSkill>()