stage-0-health

stage-0-health is a skill for Claude Code from cdeust/ai-architect-mcp. It costs 4 tokens per session (2,134 once invoked), scanned A, original, MIT.

A pre-flight checker that confirms a software pipeline's dependencies, tools, and skill versions are available and expected before work begins.

In plain words
What is it for?
It is for checking environment readiness, dependency availability, tool access, and required version information before a pipeline run.
Why use it?
It prevents later stages from starting in an environment that is missing or using the wrong required components.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ai-architect plugin — 13 skills, 4 commands, 2 MCP servers, 1 plugin shipped together

Good fit It is for checking environment readiness, dependency availability, tool access, and required version information before a pipeline run.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cdeust/ai-architect-mcp/stage-0-health
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.

Any agent
npx skills add cdeust/ai-architect-mcp --skill stage-0-health
Clone the repo
git clone --depth 1 https://github.com/cdeust/ai-architect-mcp

Made for: Claude Code.

Or install ai-architect, the plugin that ships this one along with the rest of its 13 skills, 4 commands, 2 MCP servers, 1 plugin.

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 stage-0-health

README.md
[![agentmods](https://agentmods.dev/badge/skills/cdeust/ai-architect-mcp/stage-0-health/github.svg)](https://agentmods.dev/skills/cdeust/ai-architect-mcp/stage-0-health)
Your own site
<a href="https://agentmods.dev/skills/cdeust/ai-architect-mcp/stage-0-health"><img src="https://agentmods.dev/badge/skills/cdeust/ai-architect-mcp/stage-0-health/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.

agentmods 80×15 button for stage-0-health

Your own site · 80×15
<a href="https://agentmods.dev/skills/cdeust/ai-architect-mcp/stage-0-health"><img src="https://agentmods.dev/badge/skills/cdeust/ai-architect-mcp/stage-0-health.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 4 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,134 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00004 $0.02134
Opus 5 $0.00002 $0.01067
Sonnet 5 $0.00001 $0.00427
Haiku 4.5 $0.00000 $0.00213

Measured 11d ago against content hash 5012598d418a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

stage-0-health 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 11d 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/stage-0-health/SKILL.md · 185 lines

How it starts

The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Allostatic Priming

You are a systems operator running pre-flight checks. Nothing proceeds until everything is green. You do not interpret results — you verify them. Every dependency, every tool, every skill version must be confirmed available and at the expected version before the pipeline can begin.

Trigger

USE WHEN: health check, pre-flight, validate environment, check dependencies, system ready, tool availability, skill version, dependency validation, startup verification, environment check, system status, ready check NOT FOR: discovery scanning, impact analysis, PRD generation, code implementation, verification, deployment — those are downstream stages

Survival Question

"Is every dependency, tool, and skill version available and correct for this pipeline run?"

Before you start

  1. ai_architect_load_session_state — read PipelineState. If currentStage > 0, this stage was already completed — skip.
  2. ai_architect_fs_read(path="{data_dir}/artifacts/skill-version-manifest.json") — load expected skill versions.

Missing session state on first run = expected. Missing skill-version-manifest = BLOCK.

Input contract

Field Type Source Required
skill-version-manifest.json JSON {data_dir}/artifacts/ YES — BLOCK if absent
PipelineState object ai_architect_load_session_state NO — first run creates it

Operations

1. MCP server health check

ai_architect_load_context(stage_id=0, finding_id="{findingID}")
→ If MCP server responds: PASS
→ If timeout or error: BLOCK — MCP server unreachable

Verify all tool groups present by calling one tool from each group:

  • Verification: ai_architect_verify_claim (dry run)
  • Prompting: ai_architect_select_strategy
  • Context: ai_architect_load_context
  • Scoring: ai_architect_compound_score
  • Adapters: ai_architect_fs_list
  • Interview: ai_architect_query_interview_results
  • Memory: ai_architect_check_context_budget(total_tokens=200000, used_tokens=0)
  • HOR: ai_architect_run_hor_rules (dry run with empty input)
  • Xcode: ai_architect_run_build (connectivity check only)

Read the full file on GitHub · 185 lines

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. 11d ago First seen · 185 lines · 4 tokens per session scan A 5012598d418a

Subscribe to this mod's changes

stage-0-health is a skill published in the GitHub repository cdeust/ai-architect-mcp (1 stars, last pushed 4mo ago), licensed MIT. It adds 4 tokens to every session and 2,134 once invoked, about $0.0000 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.

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