jentic-api-scorecard: Skill for Claude Code

.claude/skills/sdd-new-spec/SKILL.md

sdd-new-spec is a skill for Claude Code from jentic/jentic-api-scorecard. It costs 141 tokens per session (4,746 once invoked), scanned A, original, Apache-2.0.

A workflow for turning one roadmap phase into a dated feature specification for review. Spec-driven development means writing down requirements, implementation plans, and checks before writing the code.

In plain words
What is it for?
Use it to choose a roadmap phase, run preparation checks, create requirements.md, plan.md, and validation.md, then open a review pull request without changing application code.
Why use it?
It makes the intended work and its completion criteria clear before implementation begins, reducing uncertainty during development.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions CLAUDE.md; mentions subagents; names the AskUserQuestion tool.

This is jentic/jentic-api-scorecard's own configuration. It tells Claude Code how to work on jentic-api-scorecard itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything jentic-api-scorecard configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jentic/jentic-api-scorecard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/jentic/jentic-api-scorecard/main/.claude/skills/sdd-new-spec/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jentic/jentic-api-scorecard

Made for: Claude Code.

Wrote 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.

agentmods badge for sdd-new-spec

README.md
[![agentmods](https://agentmods.dev/badge/skills/jentic/jentic-api-scorecard/sdd-new-spec/github.svg)](https://agentmods.dev/skills/jentic/jentic-api-scorecard/sdd-new-spec)
Your own site
<a href="https://agentmods.dev/skills/jentic/jentic-api-scorecard/sdd-new-spec"><img src="https://agentmods.dev/badge/skills/jentic/jentic-api-scorecard/sdd-new-spec/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.

agentmods 80×15 button for sdd-new-spec

Your own site · 80×15
<a href="https://agentmods.dev/skills/jentic/jentic-api-scorecard/sdd-new-spec"><img src="https://agentmods.dev/badge/skills/jentic/jentic-api-scorecard/sdd-new-spec.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,746 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 191
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • low Tool Misuse · line 191
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00141 $0.04746
Opus 5 $0.00071 $0.02373
Sonnet 5 $0.00028 $0.00949
Haiku 4.5 $0.00014 $0.00475

Measured 10d ago against content hash 2131cc82c9b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

sdd-new-spec 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 10d 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.

.claude/skills/sdd-new-spec/SKILL.md · 263 lines

How it starts

The opening of the file, as written. The whole thing — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/sdd-new-spec — scaffold a feature spec for a roadmap phase

You are operating within a Spec-Driven Development (SDD) workflow. See .claude/rules/sdd-constitution.md.

The constitution (mission / tech-stack / roadmap) already exists in specs/. This skill takes one phase from specs/roadmap.md and turns it into a workable feature spec — a dated directory under specs/ with three files: requirements (what + why), plan (how), validation (done).

Inputs

Argument in $ARGUMENTS (optional):

  • empty → list candidate phases and ask the user to pick
  • integer (1, 7) → use that phase number directly
  • title fragment ("local service routing") → case-insensitive match against phase titles; if ambiguous, list matches and ask

Hard constraints

  • Spec-only — zero code changes. This skill never modifies any code tree, docs/, CLAUDE.md, or any implementation/doc file outside specs/<date>-<slug>/. It does not run test suites or linters against code. The only files it touches are the three it scaffolds. The PR it opens is for review of the spec itself; the implementation that the spec describes happens in a follow-up PR.
  • Do not write to disk before the Phase 4 AskUserQuestion step completes. The grouped questions exist to lock in decisions that shape the files; writing early wastes the call.
  • AskUserQuestion groups exactly three questions, one per output file (requirements, plan, validation). Issue them in a single call.
  • Do not create a new roadmap phase. If the user wants one, tell them edits to specs/roadmap.md are a separate explicit action — this skill only materializes existing phases.
  • Ground every requirement and constraint in specs/mission.md, specs/tech-stack.md, or the roadmap phase itself. Do not invent scope the sources do not support.
  • PR contains the spec, nothing else. Staged set must be exactly the three files under specs/<date>-<slug>/ before committing. If anything else appears, stop and surface it.

Read the full file on GitHub · 263 lines

Changes

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.

  1. 10d ago First seen · 263 lines · 141 tokens per session scan A 2131cc82c9b9

Subscribe to this mod's changes

sdd-new-spec is a skill published in the GitHub repository jentic/jentic-api-scorecard (21 stars, last pushed today), licensed Apache-2.0. It adds 141 tokens to every session and 4,746 once invoked, about $0.0007 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 2026-08-30.

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