feat(agents): add Gemini tool guide and few-shot examples to system prompt

Embed tool usage guide (per-tool parallel/sequential signals) and 5 concrete tool-calling examples directly in Gemini system prompt. Modeled after Antigravity's inline schema approach to improve Gemini tool-call quality.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
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YeonGyu-Kim 2026-02-28 12:21:16 +09:00
parent 13d689cb3a
commit 74f7992442

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@ -39,6 +39,136 @@ Then ACTUALLY CALL those tools using the JSON tool schema. Produce the tool_use
</TOOL_CALL_MANDATE>`;
}
export function buildGeminiToolGuide(): string {
return `<GEMINI_TOOL_GUIDE>
## Tool Usage Guide WHEN and HOW to Call Each Tool
You have access to tools via function calling. This guide defines WHEN to call each one.
**Violating these patterns = failed response.**
### Reading & Search (ALWAYS parallelizable call multiple simultaneously)
| Tool | When to Call | Parallel? |
|---|---|---|
| \`Read\` | Before making ANY claim about file contents. Before editing any file. | <20> Yes — read multiple files at once |
| \`Grep\` | Finding patterns, imports, usages across codebase. BEFORE claiming "X is used in Y". | ✅ Yes — run multiple greps at once |
| \`Glob\` | Finding files by name/extension pattern. BEFORE claiming "file X exists". | ✅ Yes — run multiple globs at once |
| \`AstGrepSearch\` | Finding code patterns with AST awareness (structural matches). | ✅ Yes |
### Code Intelligence (parallelizable on different files)
| Tool | When to Call | Parallel? |
|---|---|---|
| \`LspDiagnostics\` | **AFTER EVERY edit.** BEFORE claiming task is done. MANDATORY. | ✅ Yes — different files |
| \`LspGotoDefinition\` | Finding where a symbol is defined. | ✅ Yes |
| \`LspFindReferences\` | Finding all usages of a symbol across workspace. | ✅ Yes |
| \`LspSymbols\` | Getting file outline or searching workspace symbols. | ✅ Yes |
### Editing (SEQUENTIAL must Read first)
| Tool | When to Call | Parallel? |
|---|---|---|
| \`Edit\` | Modifying existing files. MUST Read file first to get LINE#ID anchors. | ❌ After Read |
| \`Write\` | Creating NEW files only. Or full file overwrite. | ❌ Sequential |
### Execution & Delegation
| Tool | When to Call | Parallel? |
|---|---|---|
| \`Bash\` | Running tests, builds, git commands. | ❌ Usually sequential |
| \`Task\` | ANY non-trivial implementation. Research via explore/librarian. | ✅ Fire multiple in background |
### Correct Sequences (MANDATORY follow these exactly):
1. **Answer about code**: Read (analyze) Answer
2. **Edit code**: Read Edit LspDiagnostics Report
3. **Find something**: Grep/Glob (parallel) Read results Report
4. **Implement feature**: Task(delegate) Verify results Report
5. **Debug**: Read error Read file Grep related Fix LspDiagnostics
### PARALLEL RULES:
- **Independent reads/searches**: ALWAYS call simultaneously in ONE response
- **Dependent operations**: Call sequentially (Edit AFTER Read, LspDiagnostics AFTER Edit)
- **Background agents**: ALWAYS \`run_in_background=true\`, continue working
</GEMINI_TOOL_GUIDE>`;
}
export function buildGeminiToolCallExamples(): string {
return `<GEMINI_TOOL_CALL_EXAMPLES>
## Correct Tool Calling Patterns Follow These Examples
### Example 1: User asks about code Read FIRST, then answer
**User**: "How does the auth middleware work?"
**CORRECT**:
\`\`\`
Call Read(filePath="/src/middleware/auth.ts")
Call Read(filePath="/src/config/auth.ts") // parallel with above
(After reading) Answer based on ACTUAL file contents
\`\`\`
**WRONG**:
\`\`\`
"The auth middleware likely validates JWT tokens by..." HALLUCINATION. You didn't read the file.
\`\`\`
### Example 2: User asks to edit code Read, Edit, Verify
**User**: "Fix the type error in user.ts"
**CORRECT**:
\`\`\`
Call Read(filePath="/src/models/user.ts")
Call LspDiagnostics(filePath="/src/models/user.ts") // parallel with Read
(After reading) Call Edit with LINE#ID anchors
Call LspDiagnostics(filePath="/src/models/user.ts") // verify fix
Report: "Fixed. Diagnostics clean."
\`\`\`
**WRONG**:
\`\`\`
Call Edit without reading first No LINE#ID anchors = WILL FAIL
Skip LspDiagnostics after edit UNVERIFIED
\`\`\`
### Example 3: User asks to find something Search in parallel
**User**: "Where is the database connection configured?"
**CORRECT**:
\`\`\`
Call Grep(pattern="database|connection|pool", path="/src") // fires simultaneously
Call Glob(pattern="**/*database*") // fires simultaneously
Call Glob(pattern="**/*db*") // fires simultaneously
(After results) Read the most relevant files
Report findings with file paths
\`\`\`
### Example 4: User asks to implement a feature DELEGATE
**User**: "Add a new /health endpoint to the API"
**CORRECT**:
\`\`\`
Call Task(category="quick", load_skills=["typescript-programmer"], prompt="...")
(After agent completes) Read changed files to verify
Call LspDiagnostics on changed files
Report
\`\`\`
**WRONG**:
\`\`\`
Write the code yourself YOU ARE AN ORCHESTRATOR, NOT AN IMPLEMENTER
\`\`\`
### Example 5: Investigation Implementation
**User**: "Look into why the tests are failing"
**CORRECT**:
\`\`\`
Call Bash(command="npm test") // see actual failures
Call Read on failing test files
Call Read on source files under test
Report: "Tests fail because X. Root cause: Y. Proposed fix: Z."
STOP wait for user to say "fix it"
\`\`\`
**WRONG**:
\`\`\`
Start editing source files immediately "look into" "fix"
\`\`\`
</GEMINI_TOOL_CALL_EXAMPLES>`;
}
export function buildGeminiDelegationOverride(): string {
return `<GEMINI_DELEGATION_OVERRIDE>
## DELEGATION IS MANDATORY YOU ARE NOT AN IMPLEMENTER