Ecp Propose

Propose ECP

Create a formal EOU Change Proposal (ECP) from $target.

Required reading

1. schemas/ecp.schema.yml — field types and constraints
2. foundry/constitution.yml — invariants the ECP must not violate

Stop conditions

Halt and report before drafting the ECP if:

• $target does not identify a concrete failure or refactor option — a goal that names no concrete failure class, incident id, or refactor-option id is not accepted.
• The target_eou cannot be determined from $target.
• The proposed change would require modifying foundry/constitution.yml — use the constitutional change process instead.

Procedure

1. Read $target to extract the diagnosed failure or refactor option.
2. Identify the failure class (F1–F12 from foundry/failure-taxonomy.yml) driving the change.
3. Determine the smallest change that addresses the root cause without constitutional violation.
4. Draft the ECP with all required fields (see structure below).
5. Confirm approval.status is proposed — never set it higher.
6. Write the ECP to foundry/self-evolution/ecp/proposed/{target_eou}-ecp-{YYYYMMDD}.yml.
7. Record the run in foundry/runs/{eou_id}/{run_id}.yml.

Required ECP fields

Field names match schemas/ecp.schema.yml. Do not use the old names (eou_id, observed_problem, simulation_status, required_tests).

id:                   # ecp-{target_eou}-{YYYYMMDD}
target_eou:           # ID of the EOU being changed
target_version_from:  # current version of the EOU (e.g. "0.2.0")
target_version_to:    # intended version after this change (e.g. "0.3.0")
failure_class:        # F1-F12 taxonomy code(s) — supplementary, not schema-required
problem:              # Concrete failure symptom, not a vague label
proposed_change:      # One specific structural change (scope, steps, inputs, authority, blast_radius, validators, stop_conditions, approval_requirements, or responsibility boundaries)
expected_benefit:     # Observable outcome if the change is applied
risks:                # What can go wrong; who is affected
tests_required:       # List of regression case IDs or new test fixtures to add
simulation:           # not_run | run_pass | run_fail
approval:
  status:             # must be "proposed" — never "approved" from this EOU
  approver:           # left blank until human owner approves
rollback_considerations: # How to revert if the change degrades outcomes (supplementary)

Output

All output files written by this skill:

Constraints

• Do not apply the ECP. Write only.
• Do not set approval.status to anything other than proposed.
• Do not propose changes to foundry/constitution.yml via ordinary ECP — constitutional changes require a separate process with explicit human review.
• High-risk changes (risk_level: high or critical) must include a non-empty rollback_considerations field.
• rollback_considerations is supplementary in the schema but mandatory in this skill for high-risk changes — these two statements are not contradictory: the schema does not enforce presence, but this skill does.