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Create A Big Plan · optim-agent | DecimalAI

agent toolingby optim-agent

Create A Big Plan

optim-agent/create-a-big-plan

Source optim-agent/optim-plans ↗License MIT

Create a large Prime Agent plan before implementation.

SkillScore65Maintained

Automatic

Coding pack

Last verified 9/2/2026

What it changes

Passed 10 of 15 test cases with the skill, and 5 of 15 without it.

Without skill30%

With skill65%

Checks it passed that the model alone missed

Names the initial plan artifact file PLAN_v1.md.
Stores internal controller state inside .git/optim-plans.
Passes --plan-level create-a-big-plan during initialization.

and 9 more in the full report

10 fixed5 passed either way6 still failing2 broke

Pass-rate lift: +35 pp
Tokens: -41%
Agent turns: 0%
Response time: -45%

Model gemini-3.6-flashMeasured 9/2/2026v115 of 23 cases passed with skill · 15 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/optim-agent-create-a-big-plan/SKILL.md https://app.decimal.ai/s/optim-agent-create-a-big-plan/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add optim-agent-create-a-big-plan, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/optim-agent-create-a-big-plan/ and pins it in .decimal/skills.lock

decimalai skills add optim-agent-create-a-big-plan

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/optim-agent-create-a-big-plan/SKILL.md https://app.decimal.ai/s/optim-agent-create-a-big-plan/SKILL.md

Raw file: /s/optim-agent-create-a-big-plan/SKILL.md ↗ · machine-readable summary at /s/optim-agent-create-a-big-plan.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 8

Prompt

When storing public plan artifacts for a major architectural planning session on topic `auth-v2` dated `2025-03-30`, in which directory path under the repository root must the public plan document be located?

What was checked, without and with the skill
Checked	Without skill	With skill
Stores public plan artifacts inside docs/optim-plans/2025-03-30-auth-v2/.	Missed	Passed

case-08 · gemini-3.6-flash · 9/2/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md27 linessingle file

Create A Big Plan

Use this skill when the user wants a large, high-risk, or open-ended plan before a repository change.

Setup

Read ../_shared/references/prime-planning-workflow.md, ../_shared/references/state-and-config.md, and ../_shared/references/plan-artifact-template.md.
Initialize state with python3 scripts/optim_plans.py init --repo <target-repo> --topic <topic> --plan-level create-a-big-plan --request-text <original-request>.
Use .git/optim-plans for controller state and docs/optim-plans/YYYY-MM-DD-topic/ for public artifacts.

Depth Contract

Inspect the target Git repo read-only before the first product question.
Ask at least 10 planning questions, one at a time. There is no maximum; stop only when the decision tree is resolved.
Use web research during both brainstorming and refinement when outside facts, patterns, or ecosystem constraints matter.
Use the standard choice prompt format: recommended first, Other second-last, Auto-complete last.
Ask the mandatory final scope confirmation before writing PLAN_v1.md.
Write PLAN_v1.md under docs/optim-plans/YYYY-MM-DD-topic/.
Run reviewer or criticizer refinement until convergence while high-priority findings, unresolved criticizer questions, or evidence gaps remain.
In each refinement round, surface at most five high-priority comments or questions.
After convergence or user acceptance, ask the native execution handoff question without Auto-complete.

Fit

Choose this level for new systems, large feature surfaces, cross-repository work, open-ended architecture, safety-sensitive changes, unclear workflows, or plans where the shape is not yet known.

Use reference-before-plan instead when downloaded external projects, papers, articles, or documentation must be studied before planning choices are safe.

Track record

Benchmark

10 / 15

test cases passed, vs 5 / 15 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

optim-agent / optim-plans

skills/create-a-big-plan/SKILL.md

View on GitHub ↗

License MITImported 8/10/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

optim-agent/create-a-planCreate a researched Prime Agent plan before implementation. Use for broad or risky repo changes needing 5 to 10 planning questions, web research, reviewer or criticizer settings, and bounded refinement; exclude direct implementation-only, factual/explanation, trivial command-only, or explicit no-plan requests.Close match+25 pp pass-rate lift

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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See it in action

What's inside

Create A Big Plan

Setup

Depth Contract

Fit

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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