What is specsync-create-spec?

A command that creates a new spec-sync module specification from a module name or feature description. It supports a minimal specification or a full scaffold with companion documents.

Use it to generate specifications, requirements, tasks, context, testing, optional design files, registry entries, and detected links to source files.

It provides a consistent starting point for documenting a module and its planned work.

How CorvidLabs/agent-3md configures Claude Code and Cursor

Reuse

Borrowing it

Nothing to install: this file belongs to CorvidLabs/agent-3md. 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/CorvidLabs/agent-3md/main/.cursor/commands/specsync-create-spec.md

Clone the repo

git clone --depth 1 https://github.com/CorvidLabs/agent-3md

Made for: Claude Code, Cursor.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/corvidlabs/agent-3md/specsync-create-spec/github.svg)](https://agentmods.dev/commands/corvidlabs/agent-3md/specsync-create-spec)

Your own site

<a href="https://agentmods.dev/commands/corvidlabs/agent-3md/specsync-create-spec"><img src="https://agentmods.dev/badge/commands/corvidlabs/agent-3md/specsync-create-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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/corvidlabs/agent-3md/specsync-create-spec"><img src="https://agentmods.dev/badge/commands/corvidlabs/agent-3md/specsync-create-spec.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 444 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00444
Opus 5.5	$0.00000	$0.00178
Sonnet 5.5	$0.00000	$0.00089
Haiku 4.5	$0.00000	$0.00044

Measured 2mo ago against content hash f02ab9c3d7e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

specsync-create-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 2mo 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.

.cursor/commands/specsync-create-spec.md · 35 lines

What it actually says

Create a new spec-sync module spec.

Arguments: $ARGUMENTS

Remove --minimal wherever it appears and remember that minimal mode was requested. Preserve the complete remaining text; do not tokenize it yet.
Classify the complete remaining text:
- A bare module name — a short identifier like auth-service or billing, matching ^[A-Za-z0-9][A-Za-z0-9._-]*$. Use it as-is.
- A free-text feature description — a sentence or phrase describing what to build, e.g. "I want a feature that lets users export their data as CSV". In this case, invent a short, kebab-case module name that captures the idea (e.g. csv-export). If the right name is ambiguous, ask the user to confirm or rename it before continuing. Keep the full description at hand — you'll use it in step 5.
If minimal mode was requested, run:
```
specsync new <module-name>
```
This creates a minimal spec only (no companion files).
Otherwise (default), run:
```
specsync scaffold <module-name>
```
This creates the spec, companion files (tasks.md, requirements.md, context.md, testing.md, and design.md if companions.design is enabled), a registry entry, and auto-detects related source files.
Open the newly created specs/<module-name>/<module-name>.spec.md and fill in the Purpose, Requirements, and Public API sections. If a free-text description was given in step 2, use it directly to draft these sections — ask clarifying questions if it's underspecified, but do not leave the sections as unfilled placeholder text. Do the same for requirements.md (acceptance criteria) and tasks.md (initial task breakdown), if present.
Run specsync check to confirm the new spec passes validation.

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.

2mo ago First seen · 35 lines · 0 tokens per session scan A f02ab9c3d7e9

Subscribe to this mod's changes

specsync-create-spec is a command published in the GitHub repository CorvidLabs/agent-3md (1 stars, last pushed 5d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 444 tokens. 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.

LLM Planning Writing and docs agent-framework agents ai-agents bun file-format

specsync-create-spec next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
specsync-create-specCorvidLabs/agent-3md	Command	1	5d ago	MIT	A	0	Claude Code, Cursor
expectyonatangross/orchestkit	Command	299	yesterday	MIT	A	51	Claude Code, Cursor
test-featureLykhoyda/rn-dev-agent	Command	20	12d ago	MIT	A	30	Claude Code
checkjmagar/claude-homelab	Command	87	1mo ago	MIT	A	10	Claude Code
carefulyonatangross/orchestkit	Command	299	yesterday	MIT	C	84	Claude Code, Cursor
stationcloudshipai/station	Command	430	9mo ago	Apache-2.0	A	0	Claude Code
pn-audit-apiperniemann/pnCore	Command	0	5d ago	MIT	A	44	Claude Code, Cursor

agent-3md: Command for Claude Code