sdd-verify

sdd-verify is an agent for Claude Code from Gentleman-Programming/gentle-pi. It costs 24 tokens per session (1,825 once invoked), scanned A, original, MIT.

A verification workflow for an SDD change, where SDD means a specification-led development process. It checks the implementation against specifications, tasks, test-driven-development evidence, and review limits.

In plain words
What is it for?
It reads the change specification, task list, and progress records, then verifies the implementation and reports how its skills were resolved.
Why use it?
It helps confirm that the delivered code matches the agreed plan and that required testing and review work was completed.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: mentions subagents.

Good fit It reads the change specification, task list, and progress records, then verifies the implementation and reports how its skills were resolved.

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Install with agentmods
npx agentmods add agents/gentleman-programming/gentle-pi/sdd-verify
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.

Clone the repo
git clone --depth 1 https://github.com/Gentleman-Programming/gentle-pi

Made for: Claude Code.

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 sdd-verify

README.md
[![agentmods](https://agentmods.dev/badge/agents/gentleman-programming/gentle-pi/sdd-verify/github.svg)](https://agentmods.dev/agents/gentleman-programming/gentle-pi/sdd-verify)
Your own site
<a href="https://agentmods.dev/agents/gentleman-programming/gentle-pi/sdd-verify"><img src="https://agentmods.dev/badge/agents/gentleman-programming/gentle-pi/sdd-verify/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 sdd-verify

Your own site · 80×15
<a href="https://agentmods.dev/agents/gentleman-programming/gentle-pi/sdd-verify"><img src="https://agentmods.dev/badge/agents/gentleman-programming/gentle-pi/sdd-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,825 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 $0.00024 $0.01825
Opus 5.5 $0.00010 $0.00730
Sonnet 5.5 $0.00005 $0.00365
Haiku 4.5 $0.00002 $0.00183

Measured 1mo ago against content hash bccaee6e5635, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sdd-verify 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 1mo 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.

assets/agents/sdd-verify.md · 147 lines

How it starts

The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the SDD verify executor for Gentle AI.

Parent Preflight Transport

Consume the exact ## SDD Session Preflight block from parent-provided context. It is parent authority, not a prompt to infer or persist defaults. If absent or malformed, return blocked without phase work. A delegated RPC child never confirms or persists SDD choices.

Skill Resolution Contract

Use your assigned executor/phase skill for this SDD phase. For project/user skills, prefer parent-injected ## Skills to load before work paths; read those exact SKILL.md files before work. Do not independently discover additional project/user skills or the registry during normal runtime.

If skill paths are missing, explicit fallback loading is allowed only as degraded self-healing. Report skill_resolution as paths-injected, fallback-registry, fallback-path, or none; fallbacks mean the parent should pass indexed paths next time.

Memory Contract

Read your own input artifacts directly from the active backend before doing the phase work; do not wait for the parent to inline them. The parent may pass artifact references and context, but retrieving required inputs is this phase's responsibility.

Inputs to read (engram/both: use the injected Engram memory read tools for the topic key, then fetch the full observation; openspec: read the file under openspec/changes/{change}/):

  • Spec (required): sdd/{change}/spec
  • Tasks (required): sdd/{change}/tasks
  • Apply-progress (required): sdd/{change}/apply-progress

Persist this phase's artifact to the active backend before returning (mandatory):

  • engram/both: call the injected Engram save tool with title and topic_key "sdd/{change}/verify-report", type: "architecture", project from context, and capture_prompt: false when the tool schema supports it (omit the field if an older schema rejects it).
  • openspec: write/update openspec/changes/{change}/verify-report.md.
  • none: return the verify report inline.

Read the full file on GitHub · 147 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. 1mo ago Changed · +2 lines bccaee6e5635
  2. 1mo ago Changed · +20 lines 09facf60118a
  3. 1mo ago First seen · 125 lines · 24 tokens per session scan A a46b1abcfe39

Subscribe to this mod's changes

sdd-verify is an agent published in the GitHub repository Gentleman-Programming/gentle-pi (804 stars, last pushed 1mo ago), licensed MIT. It adds 24 tokens to every session and 1,825 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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