Brainstorming
obra/superpowers
Makes the agent clarify intent and agree on a design with you before writing any code, scaling the process from a quick spike to a written spec.
Right-size, ground, and gate SDLC decisions with SNC-sized depth, said-vs-assumed write-back, an evidence ledger, honest option cards, recorded approval, and self-review.
Install Common Decision Discipline
$ npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard common-decision-discipline --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/common/common-decision-discipline .claude/skills/common-decision-discipline && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "common-decision-discipline" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/common/common-decision-discipline into .claude/skills/common-decision-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "common-decision-discipline", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/common/common-decision-disciplineType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard common-decision-discipline --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/common/common-decision-discipline .agents/skills/common-decision-discipline && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "common-decision-discipline" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/common/common-decision-discipline into .agents/skills/common-decision-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "common-decision-discipline", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard common-decision-discipline --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/common/common-decision-discipline .cursor/skills/common-decision-discipline && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "common-decision-discipline" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/common/common-decision-discipline into .cursor/skills/common-decision-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "common-decision-discipline", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/HoangNguyen0403/agent-skills-standard.git --path skills/common/common-decision-discipline--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard common-decision-discipline --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/common/common-decision-discipline .gemini/skills/common-decision-discipline && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "common-decision-discipline" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/common/common-decision-discipline into .gemini/skills/common-decision-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "common-decision-discipline", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install HoangNguyen0403/agent-skills-standard common-decision-disciplineInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/common/common-decision-discipline .github/skills/common-decision-discipline && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "common-decision-discipline" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/common/common-decision-discipline into .github/skills/common-decision-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "common-decision-discipline", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard common-decision-discipline --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/common/common-decision-discipline .opencode/skills/common-decision-discipline && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "common-decision-discipline" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/common/common-decision-discipline into .opencode/skills/common-decision-discipline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "common-decision-discipline", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
common-decision-discipline- GitHub stars
- 572
- Token cost
- ~1.4k tokens
- SKILL.md length
- 604 words
- Files
- 5 (incl. references)
- Skills in repo
- 211
- Repo updated
- First seen
- Licence
- MIT
At a glance
Right-size, ground, and gate SDLC decisions with SNC-sized depth, said-vs-assumed write-back, an evidence ledger, honest option cards, recorded approval, and self-review.
- Works in 8 steps: Size The Work → Shared Understanding → Evidence Ledger → …
- Running brainstorm-feature
- SKILL.md covers Priority: P0 (CRITICAL), 1. Size The Work, 2. Shared Understanding and 3. Evidence Ledger, plus 8 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Common Decision Discipline is an agent skill from HoangNguyen0403/agent-skills-standard. Right-size, ground, and gate SDLC decisions with SNC-sized depth, said-vs-assumed write-back, an evidence ledger, honest option cards, recorded approval, and self-review. Use when running brainstorm-feature, plan-feature, design-solution, or system-design-session.
Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `evals/evals.json`, `references/contract-template.md` and `references/evidence-ledger.md`).
It sits in Agent Workflows, covering Brainstorming. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.
When your agent uses it
- Running brainstorm-feature
- Design-solution
- System-design-session
Example prompts
- “/common-decision-discipline”
Workflow steps
8 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit b529c2d. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Common Decision Discipline loads about 1.4k tokens when it runs, and up to ~1.9k if it reads all its reference files. Until then it costs about 73 tokens; SKILL.md has 604 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 604 words, ~1,421 tokens.
Download SKILL.mdSave it as
.claude/skills/common-decision-discipline/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.- name
- common-decision-discipline
- description
- Right-size, ground, and gate SDLC decisions with SNC-sized depth, said-vs-assumed write-back, an evidence ledger, honest option cards, recorded approval, and self-review. Use when running brainstorm-feature, plan-feature, design-solution, or system-design-session.
- guardrail
- true
Decision Discipline
Priority: P0 (CRITICAL)
Trustworthy decisions are sized to the work, grounded in evidence, and approved on the record.
1. Size The Work
| SNC tier | Depth | Artifact |
|---|---|---|
tier=low (0-2) | Quick | Contract in chat, no file; approval in the Handoff Payload |
tier=medium (3-4) | Standard | Core brief file |
tier=high (5-6) | Deep | Full brief; decompose multi-subsystem ideas first; optional specialist-architecture-guard review |
- Score with
common-task-complexity-routing; label as inference until scouted. - Downward complexity reassessment requires documented new evidence (e.g., scouted blast radius proves isolated scope), never to bypass unresolved risk, required approvals, or the sensitive-change risk floor.
- Sensitive-Change Risk Floor: Auth, money, data integrity, or trust boundaries enforce minimum
tier=mediumregardless of arithmetic SNC total; non-zero novelty or spread (S≥1 or N≥1 with C=2) escalates totier=high. - Low-Risk Maintenance: Sufficiently specified routine fixes or maintenance may use an in-chat contract rather than creating BRD/PRD/SRS files. Preserve full traceability for governed or high-risk delivery.
- Downstream specialist workers execute against their assigned briefs; do not reload or repeat parent intake in specialists.
- A symptom without a root cause routes to
dev-fix; never compare fixes for an undiagnosed bug.
2. Shared Understanding
- Draft first, then write back two lists: You said and I assumed. Allow one correction round.
- Skip the write-back when outcome, constraints, non-goals, and acceptance criteria are already stated; confirm in one line.
- Reuse an accepted contract; never reopen it.
3. Evidence Ledger
- Tag every feasibility, AS-IS, or current-behavior claim:
confirmed(<path>),assumed, orunknown. - Read the smallest useful set of code, tests, docs, and existing
docs/brd|prd|srsbefore calling an option feasible. - Resolve what evidence can settle; label only what stays unknowable. Format:
references/evidence-ledger.md.
4. Questions
- Ask only when the answer changes the result, safety boundary, or public contract.
- Max 3 per round, each with a recommended default and 2-3 options.
- Never re-ask a settled fact. Never ask the operator to re-authorize approved work.
- For
operator_profile=business, every question is answerable by "go with your suggestion".
5. Options
- 0-3 options, only when a real choice exists. A single viable path is stated as the path, not padded.
- Each option card names its load-bearing assumption, first failure condition, worst plausible case, and cost to abandon (
references/option-card.md). - Recommend the smallest option that satisfies the contract. When a critical assumption is unresolved, recommend the option cheapest to abandon.
- Cut unrequested scope; keep all requested scope.
Show full SKILL.md (219 more words)Show less
6. Approval State
approval: pending | approved(<who>, <YYYY-MM-DD>) | assumed-autonomous.- Interactive: end with "Reply ok or corrections". An ok approves only the artifact presented.
- Autonomous or channel mode without an interactive reply channel: set
assumed-autonomousand continue;tier=highstill blocks pending explicit human sign-off.
7. Publication vs Activation
- Record
repository_statusandactivation_statusseparately; usenot_requiredwhen activation is outside the contract. - Do not require an external VM/runtime artifact for approved repository-only publication unless the contract requires it.
- After approval, continue through the accepted deliverable; do not ask to continue at each phase boundary.
- Publication approval never grants merge, deploy, or runtime-change authority. Gate consequential actions on explicit matching approval and scope.
8. Self-Review Before Handoff
- Check placeholders (TBD, TODO), contradictions, multi-plan scope, and two-reading ambiguities.
Red Flags
Stop when thinking: "too simple to need a brief", "they said implement, so skip intake", "list three options to look thorough", "approval to publish means deploy". Each is a rationalization, not a reason.
Anti-Patterns
- No unlabeled claims: every AS-IS or feasibility statement carries an evidence tag.
- No padded options: never invent alternatives to reach three.
- No silent approval: a brief without
approvalis incomplete. - No reopened decisions: settled facts are carried forward, not re-asked.
- No scope transfer: publication approval does not authorize merge, deployment, or runtime activation.
References
© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 4 other files (references) in skills/common/common-decision-discipline of HoangNguyen0403/agent-skills-standard.
- SKILL.md
- evals/evals.json
- references/contract-template.md
- references/evidence-ledger.md
- references/option-card.md
Open the folder on GitHubat commit b529c2d
Compare with similar skills
Common Decision Discipline next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Common Decision Discipline this skillHoangNguyen0403/agent-skills-standard | 572 | — | ~1.4k | Automated safety check: Pass | MIT | |
| Brainstormingobra/superpowers | 297k | 1 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Brainstormingxpinjection/test-driven-spring-boot | 112 | 53 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Yao Meta Skillyaojingang/yao-meta-skill | 2.7k | — | ~768 | Automated safety check: Pass | MIT | |
| Typesafe AIOpenAgentsInc/openagents | 455 | 9 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Trellis StartROYIANS/foliq-print-template-designer | 136 | 6 repos | ~646 | Automated safety check: Pass | MIT |
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Categories
Questions about Common Decision Discipline
What does Common Decision Discipline do?
Right-size, ground, and gate SDLC decisions with SNC-sized depth, said-vs-assumed write-back, an evidence ledger, honest option cards, recorded approval, and self-review. Common Decision Discipline is an agent skill from HoangNguyen0403/agent-skills-standard. Right-size, ground, and gate SDLC decisions with SNC-sized depth, said-vs-assumed write-back, an evidence ledger, honest option cards, recorded approval, and self-review.
When should I use Common Decision Discipline?
Common Decision Discipline fits situations like: running brainstorm-feature; design-solution; system-design-session.
How do I install Common Decision Discipline in Claude Code?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a claude-code`. Or copy the skill folder (skills/common/common-decision-discipline in HoangNguyen0403/agent-skills-standard) into .claude/skills/common-decision-discipline in your project. Claude Code loads it when a task matches its description.
How do I install Common Decision Discipline in Codex?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a codex`. Or copy the skill folder (skills/common/common-decision-discipline in HoangNguyen0403/agent-skills-standard) into .agents/skills/common-decision-discipline in your project. Codex loads it when a task matches its description.
Can I use Common Decision Discipline in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HoangNguyen0403/agent-skills-standard --skill common-decision-discipline -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/common-decision-discipline, .gemini/skills/common-decision-discipline, .github/skills/common-decision-discipline and .opencode/skills/common-decision-discipline in your project.
What does Common Decision Discipline need to run?
SKILL.md names no scripts, command-line tools or credentials: Common Decision Discipline is instructions for the agent only.
Does Common Decision Discipline access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Common Decision Discipline safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Common Decision Discipline use?
Common Decision Discipline is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Common Decision Discipline use?
About 1.4k tokens (SKILL.md is roughly 5.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 482 tokens, read only when the agent opens those files.
What are the alternatives to Common Decision Discipline?
Skills that share tags, products or a category with Common Decision Discipline: Brainstorming (obra/superpowers, 297k stars), Brainstorming (xpinjection/test-driven-spring-boot, 112 stars), Yao Meta Skill (yaojingang/yao-meta-skill, 2.7k stars) and Typesafe AI (OpenAgentsInc/openagents, 455 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Common Decision Discipline?
HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.
Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.