doubt-driven-development

doubt-driven-development is a skill for Claude Code, Codex from Plazmodium/odin-workflow. It costs 22 tokens per session (279 once invoked), scanned A, original, MIT.

A process for challenging important implementation decisions before acting on them. It checks the evidence and looks for ways a confident assumption could be wrong.

In plain words
What is it for?
Use it for migrations, irreversible changes, production work, security decisions, and other tasks where an incorrect assumption could have serious effects.
Why use it?
It lowers the chance of security problems, data loss, production incidents, or mistakes in unfamiliar code or domains.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for migrations, irreversible changes, production work, security decisions, and other tasks where an incorrect assumption could have serious effects.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/plazmodium/odin-workflow/doubt-driven-development
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 Plazmodium/odin-workflow --skill doubt-driven-development
Clone the repo
git clone --depth 1 https://github.com/Plazmodium/odin-workflow

Made for: Claude Code, Codex.

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 doubt-driven-development

README.md
[![agentmods](https://agentmods.dev/badge/skills/plazmodium/odin-workflow/doubt-driven-development.svg)](https://agentmods.dev/skills/plazmodium/odin-workflow/doubt-driven-development)
Your own site
<a href="https://agentmods.dev/skills/plazmodium/odin-workflow/doubt-driven-development"><img src="https://agentmods.dev/badge/skills/plazmodium/odin-workflow/doubt-driven-development.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 279 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 $0.00022 $0.00279
Opus 5 $0.00011 $0.00139
Sonnet 5 $0.00004 $0.00056
Haiku 4.5 $0.00002 $0.00028

Measured 6d ago against content hash 179122c33b4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

doubt-driven-development 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 6d 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.

agents/skills/workflow/doubt-driven-development/SKILL.md · 42 lines

What it actually says

doubt-driven-development

When To Use

  • Security, data loss, production, migration, or irreversible risk exists.
  • The agent is unusually confident with thin evidence.
  • The codebase or domain is unfamiliar.

Workflow

  1. State the decision or claim being relied on.
  2. Extract the evidence that supports it.
  3. List plausible ways the claim could be wrong.
  4. Check the most likely failure modes against code, tests, docs, or runtime behavior.
  5. Reconcile: keep, revise, or stop and ask.
  6. Do not proceed on unresolved high-impact doubts.

Anti-Rationalization

Excuse Rebuttal
"This looks correct." Looking correct is not evidence.
"The risk is theoretical." High-impact theoretical risks deserve bounded checks.
"Questioning myself wastes time." Early doubt is cheaper than late incident response.

Verification

  • Key claims have explicit evidence.
  • High-impact doubts are resolved or escalated.
  • Final action reflects the reconciled evidence.

Exit Criteria

  • The decision is safe enough to proceed, or work stops with a clear blocker.
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. 6d ago First seen · 42 lines · 22 tokens per session scan A 179122c33b4a

Subscribe to this mod's changes

doubt-driven-development is a skill published in the GitHub repository Plazmodium/odin-workflow (0 stars, last pushed 3mo ago), licensed MIT. It adds 22 tokens to every session and 279 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 2026-09-01.

Related

Other skills, from other repositories

b123d-modeling

Use this skill when asked to model, build, or modify a 3D part or assembly with build123d — from a text description, a technical drawing (image or PDF), dimensions in a spec, or an existing STEP/STL file.

pzfreo/build123d-mcp · 0 tokens

b123d-edit

Use this skill when the task is to change an existing build123d model or script: "make this bracket 5 mm taller", "move the holes inward", "add a counterbore", "remove this rib", "make it fit this mating part", or "repair the code so the intended edit remains parametric".

pzfreo/build123d-mcp · 0 tokens

new-gh-issue-orchestration

Orchestrates a GitHub-issue-driven delivery workflow from issue intake to PR creation using reviewer-first then worker execution. Invoked when the user provides a GitHub issue link/number and asks to start end-to-end delivery.

soulcodex/agentic · 54 tokens

hmem-release

Pre-publish checklist for hmem: skills synced, version bumped, tests green, nothing forgotten. Use before npm publish or when the user says 'release', 'publish', 'push a release', or 'neue Version'.

Bumblebiber/hmem · 50 tokens

mlflow-traces

Use when working with MLflow traces: debugging via MCP tools, analyzing performance, logging feedback, writing custom scorers/evaluations, or cleaning up trace data.

Galbaz1/video-research-mcp · 37 tokens

video-explainer

Teaches Claude how to use the 15 video explainer tools to create explainer videos from research content. Activates when working with video synthesis, explainer creation, or the video-explainer MCP server.

Galbaz1/video-research-mcp · 48 tokens