Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add commands/aaditya0602/toolplan-mcp/codex-toolplangit clone --depth 1 https://github.com/aaditya0602/toolplan-mcpWrote 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/commands/aaditya0602/toolplan-mcp/codex-toolplan)<a href="https://agentmods.dev/commands/aaditya0602/toolplan-mcp/codex-toolplan"><img src="https://agentmods.dev/badge/commands/aaditya0602/toolplan-mcp/codex-toolplan.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00188 |
| Opus 5 | $0.00000 | $0.00094 |
| Sonnet 5 | $0.00000 | $0.00038 |
| Haiku 4.5 | $0.00000 | $0.00019 |
Grade B, and why
codex-toolplan 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 3d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
If the server is missing, tell me to add to ~/.codex/config.toml: What it actually says
/toolplan for OpenAI Codex CLI — copy this file to ~/.codex/prompts/toolplan.md
Call the plan_project tool on the toolplan MCP server with:
idea: the text I passed after the commandgrade: "industry" for production/business apps, otherwise "personal"; ask me if ambiguous.
Run the searches in the result's "Live Crosscheck" section if you have web access; append clearly-better findings under "Fresh findings (unverified)" with source links. Then show the final enriched prompt verbatim in a markdown block. Do not start building until I confirm or hand back an edited version.
If the server is missing, tell me to add to ~/.codex/config.toml:
[mcp_servers.toolplan]
command = "npx"
args = ["-y", "toolplan-mcp"]
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.
- 3d ago First seen · 21 lines · 0 tokens per session scan B d090fd57a2c1
codex-toolplan is a command published in the GitHub repository aaditya0602/toolplan-mcp (0 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 188 tokens. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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