Spec

Spec is a skill for Claude Code, Codex from RohiRIK/OpenLtm. It costs 23 tokens per session (276 once invoked), scanned A, original, MIT.

A codebase-exploration and requirements-writing workflow that turns a requested change into acceptance criteria, the specific conditions that prove it works.

In plain words
What is it for?
Defining features, investigating bugs, documenting reproduction steps, and preparing work for planning or testing.
Why use it?
It clarifies what should be built before planning or coding, while considering existing code and earlier decisions.

Skill for Claude CodeCodex

Part of the openltm plugin — 10 skills, 6 commands, 3 agents, 3 hooks shipped together

Install

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.

agentmods
npx agentmods add skills/rohirik/openltm/spec
Any agent
npx skills add RohiRIK/OpenLtm --skill spec
Clone the repo
git clone --depth 1 https://github.com/RohiRIK/OpenLtm

Made for: Claude Code, Codex.

Or install openltm, the plugin that ships this one along with the rest of its 10 skills, 6 commands, 3 agents, 3 hooks.

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 Spec

README.md
[![agentmods](https://agentmods.dev/badge/skills/rohirik/openltm/spec.svg)](https://agentmods.dev/skills/rohirik/openltm/spec)
Your own site
<a href="https://agentmods.dev/skills/rohirik/openltm/spec"><img src="https://agentmods.dev/badge/skills/rohirik/openltm/spec.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 276 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00023 $0.00276
Opus 5 $0.00012 $0.00138
Sonnet 5 $0.00005 $0.00055
Haiku 4.5 $0.00002 $0.00028

Measured 4d ago against content hash 668580a2a052, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 4d 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.

skills/Spec/SKILL.md · 38 lines

What it actually says

Spec

Before writing a spec, explore the codebase and recall prior decisions from LTM. Produces acceptance criteria that feed directly into /plan.

LTM tools and the recall → learn ritual live in one place: SkillSearch('ltm memory contract') loads the Ltm skill.

Workflow Routing

Workflow Trigger File
ExploreAndSpec "spec", "define what to build", "requirements", "before plan" Workflows/ExploreAndSpec.md

Examples

Example 1: New feature on existing project

User: "/spec add rate limiting to the API"
→ recall + context for auth/API decisions
→ Explores existing middleware and route files
→ Writes spec with acceptance criteria into specs/
→ Hands off to /plan

Example 2: Bug investigation

User: "/spec the session token expires too early"
→ recall for session/auth gotchas
→ Explores auth files and session logic
→ Writes spec with reproduce steps and acceptance criteria
→ Hands off to /test (ProveIt)
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 38 lines · 23 tokens per session scan A 668580a2a052

Subscribe to this mod's changes

Spec is a skill published in the GitHub repository RohiRIK/OpenLtm (26 stars, last pushed 3d ago), licensed MIT. It adds 23 tokens to every session and 276 once invoked, about $0.0001 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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