forge-spec

A command that creates a software specification using ContextForge tools. The specification follows software-development requirements and scenarios written in a Given/When/Then format.

In plain words
What is it for?
Use it to create an SDD specification, related files, and guardrails for a proposed code change.
Why use it?
It organizes a requested change into motivation, scope, acceptance criteria, requirements, and implementation safeguards.

Command

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 commands/alejandro-cedeno-10/contextforge-cli/forge-spec
Clone the repo
git clone --depth 1 https://github.com/alejandro-cedeno-10/contextforge-cli
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 190 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 $0.00011 $0.00190
Opus 5 $0.00005 $0.00095
Sonnet 5 $0.00002 $0.00038
Haiku 4.5 $0.00001 $0.00019

Measured yesterday against content hash 68225ff28aae, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

forge-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 yesterday.

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.

.opencode/commands/forge-spec.md · 14 lines

What it actually says

Flujo para crear una spec SDD para la tarea: $ARGUMENTS

  1. Llama el MCP tool forge_context con task="$ARGUMENTS" para obtener los archivos relevantes (budget 12000 tokens).
  2. Llama el MCP tool forge_spec con change_id= derivado de "$ARGUMENTS".
  3. Llena openspec/changes/<id>/proposal.md con: motivación, alcance, criterios de aceptación.
  4. Llena openspec/changes/<id>/specs/<dominio>/spec.md con Requirements y Scenarios (Given/When/Then).
  5. Llama forge_implement con el mismo change_id para generar los guardrails.
  6. Reporta: change_id creado, archivos en scope, próximo paso.
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. yesterday First seen · 14 lines · 11 tokens per session scan A 68225ff28aae

Subscribe to this mod's changes

forge-spec is a command published in the GitHub repository alejandro-cedeno-10/contextforge-cli (0 stars, last pushed 3mo ago), licensed MIT. It adds 11 tokens to every session and 190 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 2026-08-31.