
Ecomode
- 91 installs
- 32.4k repo stars
- Updated August 4, 2026
- yeachan-heo/oh-my-codex
Helps with ai & agent building tasks during AI-assisted development.
About
ecomode is a Claude Code skill for ai & agent building. It helps solo builders move faster with AI-assisted coding.
- ecomode
- AI & Agent Building
- AI-coding skill
Ecomode by the numbers
- 91 all-time installs (skills.sh)
- +1 installs in the week ending Jul 20, 2026 (Skillselion tracking)
- Ranked #4,798 of 16,546 AI & Agent Building skills by installs in the Skillselion catalog
- Data as of Aug 5, 2026 (Skillselion catalog sync)
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| Installs | 91 |
|---|---|
| repo stars | ★ 32.4k |
| Last updated | August 4, 2026 |
| Repository | yeachan-heo/oh-my-codex ↗ |
What it does
Helps with ai & agent building tasks during AI-assisted development.
Files
Ecomode deprecated
Hard-deprecated. Do not invoke or route this skill. Use $ultrawork directly for maintained high-throughput execution workflows.
What Ecomode Does
Overrides default model selection to prefer cheaper tiers:
| Default Tier | Ecomode Override |
|---|---|
| THOROUGH | STANDARD, THOROUGH only if essential |
| STANDARD | LOW first, STANDARD if needed |
| LOW | LOW - no change |
What Ecomode Does NOT Do
- Persistence: Use
ralphfor "don't stop until done" - Parallel Execution: Use
ultraworkfor parallel agents - Delegation Enforcement: Always active via core orchestration
Combining Ecomode with Other Modes
Ecomode is a modifier that combines with execution modes:
| Combination | Effect |
|---|---|
eco ralph | Ralph loop with cheaper agents |
eco ultrawork | Parallel execution with cheaper agents |
eco autopilot | Full autonomous with cost optimization |
Ecomode Routing Rules
ALWAYS prefer lower tiers. Only escalate when task genuinely requires it.
| Decision | Rule |
|---|---|
| DEFAULT | Start with LOW tier for most tasks |
| UPGRADE | Escalate to STANDARD when LOW tier fails or task requires multi-file reasoning |
| AVOID | THOROUGH tier - only for planning/critique if essential |
Agent Selection in Ecomode
FIRST ACTION: Before delegating any work, read the agent reference file:
Read file: references/agent-tiers.mdThis provides the complete agent tier matrix, MCP tool assignments, and selection guidance.
Ecomode preference order:
// PREFERRED - Use for most tasks
use /prompts:executor for this scoped task
use /prompts:explore for this scoped task
use /prompts:architect for this scoped task
// FALLBACK - Only if LOW fails
use /prompts:executor for this scoped task
use /prompts:architect for this scoped task
// AVOID - Only for planning/critique if essential
use /prompts:planner for this scoped taskDelegation Enforcement
Ecomode maintains all delegation rules from core protocol with cost-optimized routing:
| Action | Delegate To | Model |
|---|---|---|
| Code changes | executor | LOW / STANDARD |
| Analysis | architect | LOW |
| Search | explore | LOW |
| Documentation | writer | LOW |
Background Execution
Long-running commands (install, build, test) run in background. Maximum 20 concurrent.
Token Savings Tips
1. Batch similar tasks to one agent instead of spawning many 2. Use explore (LOW tier) for file discovery, not architect 3. Prefer LOW-tier executor routing for simple changes - only upgrade if it fails 4. Use writer (LOW tier) for all documentation tasks 5. Avoid THOROUGH-tier agents unless the task genuinely requires deep reasoning
Disabling Ecomode
Ecomode can be completely disabled via config. When disabled, all ecomode keywords are ignored.
Set in ~/.codex/.omx-config.json:
{
"ecomode": {
"enabled": false
}
}State Management
Use the CLI-first state surface (omx state ... --json) for ecomode lifecycle state. If explicit MCP compatibility tools are already available, equivalent omx_state calls are optional compatibility, not the default.
- On activation:
omx state write --input '{"mode":"ecomode","active":true}' --json
- On deactivation/completion:
omx state write --input '{"mode":"ecomode","active":false}' --json
- On cancellation/cleanup:
run $cancel (which should call omx state clear --input '{"mode":"ecomode"}' --json)
Agent Tiers
This file defines practical tier guidance for OMX agent routing.
Mental Model
OMX now separates three concepts:
role: what the agent is responsible for (executor,planner,architect)tier: how much reasoning/cost to spend (LOW,STANDARD,THOROUGH)posture: how the role behaves (frontier-orchestrator,deep-worker,fast-lane)exactModel: optional role pin that bypasses tier defaults when a role needs a
specific model contract.
Use role to choose responsibility, tier to choose depth, and posture to choose operating style.
Tiers
LOW:
Fast lookups and narrow checks. Use for simple exploration, style checks, and lightweight doc edits. Typical roles: explore, style-reviewer, writer.
STANDARD:
Default tier for implementation, debugging, and normal verification. Typical roles: executor, debugger, test-engineer, quality-reviewer.
THOROUGH:
Use for architectural, security-sensitive, or high-impact multi-file work. Typical roles: architect, critic, security-reviewer, executor. Note: deep-executor is deprecated; route implementation to executor.
Selection Rules
1. Start at STANDARD for most code changes. 2. Use LOW only when the task is bounded and non-invasive. 3. Escalate to THOROUGH for:
- security/auth/trust-boundary changes
- architectural decisions with system-wide impact
- large refactors across many files
4. For Ralph completion checks, use at least STANDARD architect verification.
Posture Guidance
frontier-orchestrator:- Best for steerable frontier models and leader-style roles.
- Prioritizes intent classification, delegation, verification, and architectural judgment.
- Typical roles:
planner,analyst,architect,critic,code-reviewer. - Ralplan keeps
plannerandarchitectin this posture but pins them to
exact gpt-5.4-mini with high reasoning; the critic consensus gate stays on the frontier lane.
deep-worker:- Best for implementation-heavy roles that should carry work to completion.
- Prioritizes direct execution, minimal diffs, and strict verification.
- Typical roles:
executor,debugger,test-engineer,build-fixer.
fast-lane:- Best for cheap/fast models used for triage, search, and narrow synthesis.
- Prioritizes quick routing, concise search, and escalation over deep autonomous work.
- Typical roles:
explore,writer, and lightweight research/search specialists.