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.
npx skills add MageByte-Zero/spec-superflow --skill build-executorgit clone --depth 1 https://github.com/MageByte-Zero/spec-superflowWrote 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.
[](https://agentmods.dev/skills/magebyte-zero/spec-superflow/build-executor)<a href="https://agentmods.dev/skills/magebyte-zero/spec-superflow/build-executor"><img src="https://agentmods.dev/badge/skills/magebyte-zero/spec-superflow/build-executor/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.
<a href="https://agentmods.dev/skills/magebyte-zero/spec-superflow/build-executor"><img src="https://agentmods.dev/badge/skills/magebyte-zero/spec-superflow/build-executor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00030 | $0.01808 |
| Opus 5.5 | $0.00012 | $0.00723 |
| Sonnet 5.5 | $0.00006 | $0.00362 |
| Haiku 4.5 | $0.00003 | $0.00181 |
Grade A, and why
build-executor 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 24d 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.
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Build Executor
Bundled runtime
Before executing a CLI line below, replace its leading SSF with node "<plugin-root>/scripts/spec-superflow.mjs"; <plugin-root> is the absolute directory two levels above this file. Never run SSF literally or call an ssf from PATH.
For workflow_variant planned, read the generated execution plan and current task only; approval is already in the plan. Run SSF isolate <change-dir> before code edits, defaulting to a feature branch. No contract, recommendation or DP-4 is required. For other paths read the workflow receipt first. Full/legacy Hotfix require the approved execution contract; read linked requirements/design only for the current task. Quick/direct Hotfix/Tweak use their bounded request and verification strategy. Lightweight follows its receipt's focused review and verification requirements.
Preflight
Legacy Full/Hotfix run SSF isolate <change-dir> before edits and use the returned absolute checkout path for every command. The default is a feature branch in the current checkout; create a worktree only when the user explicitly selects --worktree. Failure blocks edits in protected branches; preserve an existing isolation and diagnose initialization failures. Direct paths do not require isolation or physical finish.
For legacy Full, honor DP-3 approval. When the record is missing but the user explicitly approved this exact contract in the conversation, persist that existing decision and continue. Never infer approval of unseen or changed behavior, or request the same unchanged approval again. Enter executing only with a current plan and passing guard; skip the transition if already executing.
Native first
Native means the current agent implements continuously; persisted mode is inline. Task count, file count and number of waves do not justify delegation. batch-inline remains compatible serial execution. Select SDD only when the user explicitly chooses delegation for this change and independently scoped work has a concrete benefit. Tool availability, many tasks, a long context, or generic implementation approval never authorize subagents. This includes reviewer and exploratory subagents.
What ships with it
4 files 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.
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.
- 24d ago Changed · +4 lines ad3f7f118975
- 26d ago Changed · -215 lines · -9 tokens per session 2f54ae11a17c
- 1mo ago Changed · +4 lines 284e585dc41e
- 1mo ago First seen · 289 lines · 39 tokens per session scan A 042d41e46dfd
build-executor is a skill published in the GitHub repository MageByte-Zero/spec-superflow (867 stars, last pushed 16d ago), licensed MIT. It adds 30 tokens to every session and 1,808 once invoked, about $0.0001 per session on Opus 5.5. 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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