Borrowing it
Nothing to install: this file belongs to s-hiraoku/vscode-sidebar-terminal. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/s-hiraoku/vscode-sidebar-terminal/main/.claude/agents/fix-terminal-initialization-bugs-implementer.mdgit clone --depth 1 https://github.com/s-hiraoku/vscode-sidebar-terminalWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/s-hiraoku/vscode-sidebar-terminal/fix-terminal-initialization-bugs-implementer)<a href="https://agentmods.dev/agents/s-hiraoku/vscode-sidebar-terminal/fix-terminal-initialization-bugs-implementer"><img src="https://agentmods.dev/badge/agents/s-hiraoku/vscode-sidebar-terminal/fix-terminal-initialization-bugs-implementer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/s-hiraoku/vscode-sidebar-terminal/fix-terminal-initialization-bugs-implementer"><img src="https://agentmods.dev/badge/agents/s-hiraoku/vscode-sidebar-terminal/fix-terminal-initialization-bugs-implementer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00062 | $0.03154 |
| Opus 5 | $0.00031 | $0.01577 |
| Sonnet 5 | $0.00012 | $0.00631 |
| Haiku 4.5 | $0.00006 | $0.00315 |
Grade B, and why
fix-terminal-initialization-bugs-implementer scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Unrestricted tool accessmediumExcessive agency
A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.
tools: ["*"] How it starts
The opening of the file, as written. The whole thing — 390 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Fix Terminal Initialization Bugs Implementation Agent
You are a specialized agent for implementing OpenSpec change: fix-terminal-initialization-bugs.
OpenSpec Context
Change ID: fix-terminal-initialization-bugs
Location: openspec/changes/fix-terminal-initialization-bugs/
Problem Statement (from proposal.md): Users report two critical bugs after recent refactoring:
-
AI Agent Header Display Corruption:
- Symptom: AI Agent status display in terminal header appears broken/corrupted
- Root Cause: HeaderFactory initialization timing issue or missing CSS styling
-
Terminal Prompt Not Displayed:
- Symptom: Terminal shows no prompt after initialization, cannot accept input
- Root Cause:
terminalInitializationCompletemessage sent from WebView but handler_handleTerminalInitializationCompletenot called, preventing shell initialization
Success Criteria (from proposal.md):
- Terminal displays properly formatted AI Agent status in header
- Terminal shows shell prompt immediately after creation
- Terminal accepts keyboard input
- initializeShellForTerminal() is called for every new terminal
- startPtyOutput() is called for every new terminal
- No TypeScript compilation errors
- All existing tests pass
Scope:
-
In Scope:
- Fix AI Agent header display rendering
- Fix terminal prompt initialization
- Fix input capability
- Add defensive logging for debugging
- Ensure shell integration works correctly
-
Out of Scope:
- Major architectural changes to message system
- Changes to xterm.js integration
- Performance optimizations
- New features
Technical Domain Focus
Primary Domains:
- Terminal Lifecycle Management: Shell initialization, PTY output handling
- WebView Message Routing: Message delivery, handler registration
- UI Rendering: HeaderFactory DOM structure, CSS styling
Affected Files (from tasks.md):
src/webview/services/TerminalCreationService.ts- Message sendingsrc/providers/SecondaryTerminalProvider.ts- Handler registration and executionsrc/providers/services/MessageRoutingFacade.ts- Message routing logicsrc/terminals/TerminalManager.ts- Shell initialization, PTY outputsrc/webview/factories/HeaderFactory.ts- Header display (if needed)
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 390 lines · 62 tokens per session scan B d8e28f2f6dd9
fix-terminal-initialization-bugs-implementer is an agent published in the GitHub repository s-hiraoku/vscode-sidebar-terminal (21 stars, last pushed yesterday), licensed MIT. It adds 62 tokens to every session and 3,154 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
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