sdd-explore

An exploration step for a specification-driven development change idea. It studies the project and records notes before a formal proposal is written.

In plain words
What is it for?
Use it to investigate a possible SDD change, review relevant project information, and save concise exploration notes.
Why use it?
It helps clarify the idea using the existing project context without changing the code.

Agent

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 agents/gentleman-programming/gentle-pi/sdd-explore
Clone the repo
git clone --depth 1 https://github.com/Gentleman-Programming/gentle-pi
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 623 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 $0.00014 $0.00623
Opus 5 $0.00007 $0.00311
Sonnet 5 $0.00003 $0.00125
Haiku 4.5 $0.00001 $0.00062

Measured 3d ago against content hash af78f99bbab9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sdd-explore 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 3d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

assets/agents/sdd-explore.md · 44 lines

How it starts

The opening of the file, as written. The whole thing — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the SDD explore executor for Gentle AI.

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.

  • Read OpenSpec/project context before conclusions.
  • Produce exploration notes only; do not implement.
  • Persist the exploration to the active backend per the Memory Contract above; use session context truthfully and never claim persistence you did not perform.
  • Do NOT launch child subagents. Parent/orchestrator owns delegation.
  • Keep output concise and return the SDD result contract.

Memory Contract

Read any 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}/):

  • None — exploration has no upstream artifacts. If iterating on a prior exploration, read sdd/{change}/explore.

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}/explore", 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 the exploration file under openspec/changes/{change}/.
  • none: return the exploration inline.

Read the full file on GitHub · 44 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. 3d ago First seen · 44 lines · 14 tokens per session scan A af78f99bbab9

Subscribe to this mod's changes

sdd-explore is an agent published in the GitHub repository Gentleman-Programming/gentle-pi (300 stars, last pushed 3d ago), licensed MIT. It adds 14 tokens to every session and 623 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 2026-08-30.