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 skills add signnow/sn-mcp-server --skill sn-planninggit clone --depth 1 https://github.com/signnow/sn-mcp-serverWrote 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/skills/signnow/sn-mcp-server/sn-planning)<a href="https://agentmods.dev/skills/signnow/sn-mcp-server/sn-planning"><img src="https://agentmods.dev/badge/skills/signnow/sn-mcp-server/sn-planning/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/skills/signnow/sn-mcp-server/sn-planning"><img src="https://agentmods.dev/badge/skills/signnow/sn-mcp-server/sn-planning.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 | $0.00070 | $0.01106 |
| Opus 5 | $0.00035 | $0.00553 |
| Sonnet 5 | $0.00014 | $0.00221 |
| Haiku 4.5 | $0.00007 | $0.00111 |
Grade A, and why
sn-planning scanned grade A with 0 findings 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 9d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Implementation Planning
Objective
Convert a Technical Specification into a rigorous, step-by-step Implementation Plan. Define WHAT needs to be done, WHERE (exact file paths), and in WHAT ORDER — so a developer agent can execute each step linearly without ambiguity.
Output Rules
| Do | Don't |
|---|---|
| Write function signatures (name, params, return type) | Write function bodies or class implementations |
| Describe logic in prose/pseudo-code | Write actual code blocks |
| Use explicit file paths relative to project root | Leave locations ambiguous |
Use Markdown checkboxes - [ ] for all steps |
Use numbered lists without checkboxes |
| Prefix each step with a layer tag | Mix layers within a single step |
| Describe test intent and coverage in prose | Write test code |
Layer Tags
Prefix every step:
| Tag | Layer | Location |
|---|---|---|
[API Model] |
Pydantic API models | signnow_client/models/ |
[API Client] |
HTTP client methods | signnow_client/client_*.py |
[Tool Model] |
Curated response DTOs | sn_mcp_server/tools/models.py |
[Tool Logic] |
Business logic | sn_mcp_server/tools/<feature>.py |
[Tool Orchestrator] |
MCP tool wiring | sn_mcp_server/tools/signnow.py |
[Registration] |
Tool registration | sn_mcp_server/tools/__init__.py |
[Config] |
Configuration | */config.py |
[Auth] |
Authentication | sn_mcp_server/auth.py, token_provider.py |
[Transport] |
CLI/HTTP app | sn_mcp_server/cli.py, app.py |
[Tests] |
Unit tests | tests/unit/ |
[Docs] |
Documentation | README.md |
Plan Structure
Write to .plans/Plan-{TASK_NAME}.md. Group steps into phases following the dependency graph — foundational layers first, dependent layers last.
Phase 1: API Models
Pure data definitions. Zero dependencies. Represent SignNow API payloads.
- Each step: file path, model purpose, fields.
- Constraint check: Models import ONLY from
pydantic.
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.
- 9d ago First seen · 101 lines · 70 tokens per session scan A c79c9fcd2687
sn-planning is a skill published in the GitHub repository signnow/sn-mcp-server (8 stars, last pushed 1mo ago), licensed MIT. It adds 70 tokens to every session and 1,106 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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