openspec-apply

A command that applies an OpenSpec proposal to a codebase. OpenSpec is a written description of a planned software change.

In plain words
What is it for?
Use it when the user invokes `/openspec-apply` to carry out an OpenSpec proposal. The input is handled as a slash-command request.
Why use it?
It turns an approved proposal into repository changes through the project’s command workflow, so the implementation follows the stated plan.

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/agentworkforce/burn/openspec-apply
Clone the repo
git clone --depth 1 https://github.com/AgentWorkforce/burn
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 67 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 $0.00015 $0.00067
Opus 5 $0.00008 $0.00034
Sonnet 5 $0.00003 $0.00013
Haiku 4.5 $0.00002 $0.00007

Measured yesterday against content hash 4b7a0c977349, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openspec-apply 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.

tests/fixtures/ghost-surface/claude/commands/openspec-apply.md · 9 lines

What it actually says

Slash-command-style. Per #172, the user typing /openspec-apply triggers this prompt — Claude inlines the body wrapped in <command-name> so we can detect the invocation from the content sidecar.

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 · 9 lines · 15 tokens per session scan A 4b7a0c977349

Subscribe to this mod's changes

openspec-apply is a command published in the GitHub repository AgentWorkforce/burn (5 stars, last pushed 8d ago), licensed Apache-2.0. It adds 15 tokens to every session and 67 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.