architect-foundation

architect-foundation is a skill for Claude Code from navapbc/digital-service-orchestra. It costs 133 tokens per session (2,288 once invoked), scanned A, original, Apache-2.0.

An architecture setup skill that helps establish coding standards, design rules, guardrails, automated checks, and project conventions after project onboarding.

In plain words
What is it for?
It helps define architectural patterns, avoid anti-patterns, create fitness checks, add CI scaffolding, and record decisions.
Why use it?
It turns identified project practices and risks into agreed rules and enforcement mechanisms.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; mentions subagents.

Part of the dso plugin — 37 skills, 4 commands, 53 agents shipped together

Good fit It helps define architectural patterns, avoid anti-patterns, create fitness checks, add CI scaffolding, and record decisions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/navapbc/digital-service-orchestra/architect-foundation
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 navapbc/digital-service-orchestra --skill architect-foundation
Clone the repo
git clone --depth 1 https://github.com/navapbc/digital-service-orchestra

Made for: Claude Code.

Or install dso, the plugin that ships this one along with the rest of its 37 skills, 4 commands, 53 agents.

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 architect-foundation

README.md
[![agentmods](https://agentmods.dev/badge/skills/navapbc/digital-service-orchestra/architect-foundation/github.svg)](https://agentmods.dev/skills/navapbc/digital-service-orchestra/architect-foundation)
Your own site
<a href="https://agentmods.dev/skills/navapbc/digital-service-orchestra/architect-foundation"><img src="https://agentmods.dev/badge/skills/navapbc/digital-service-orchestra/architect-foundation/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 architect-foundation

Your own site · 80×15
<a href="https://agentmods.dev/skills/navapbc/digital-service-orchestra/architect-foundation"><img src="https://agentmods.dev/badge/skills/navapbc/digital-service-orchestra/architect-foundation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 133 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,288 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 $0.00133 $0.02288
Opus 5.5 $0.00053 $0.00915
Sonnet 5.5 $0.00027 $0.00458
Haiku 4.5 $0.00013 $0.00229

Measured 2mo ago against content hash f581784913a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

architect-foundation 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 2mo 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.

plugins/dso/skills/architect-foundation/SKILL.md · 195 lines

How it starts

The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architect Foundation

Establish positive architectural patterns and the enforcement mechanisms that keep them in place, building on the project detection already done by /dso:onboarding.

Usage

/dso:architect-foundation           # interactive
/dso:architect-foundation --auto    # non-interactive (see Auto-Mode Behavior below)

Supports dryrun: /dso:dryrun /dso:architect-foundation.

Inputs

  • Required: .claude/project-understanding.md (from /dso:onboarding).
  • Reference prompts: load on demand.
    • Anti-pattern codes AP-1…AP-5: skills/shared/prompts/anti-patterns.md.
    • Fitness-function templates: skills/architect-foundation/fitness-function-templates.md.
    • CI skeleton blocks: skills/shared/prompts/ci-skeleton-templates.md.

Workflow

PA Read understanding + detect existing artifacts
PB Socratic gap-fill (one open question at a time)
PC Recommendation synthesis (per-item accept/reject/discuss)
PD Write scaffolding (single batched confirmation)
PE Wire enforcement + ADRs + peer review

There is one approval gate per phase, not three. The Phase C per-recommendation loop replaces a blueprint-level validation loop.

Auto-Mode Behavior

When invoked with --auto:

Phase Behavior under --auto
PA Same. Fail with an actionable error if project-understanding.md is missing or incomplete (list needed fields).
PB Skipped — select recommended defaults from the understanding file. Report the chosen defaults in a summary table.
PC Accept all synthesized recommendations without per-item review.
PD Skip the "proceed with writing N files?" confirmation; skip prefill-config.sh post-write confirmation.
PE Still runs /dso:review; applies critical/important findings automatically.

Read the full file on GitHub · 195 lines

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. 2mo ago First seen · 195 lines · 133 tokens per session scan A f581784913a0

Subscribe to this mod's changes

architect-foundation is a skill published in the GitHub repository navapbc/digital-service-orchestra (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 133 tokens to every session and 2,288 once invoked, about $0.0005 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 2026-09-03.

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