fix: agents-weekly-metrics uses env vars not CLI args

[stranske]

The aggregate_agent_metrics.py script uses environment variables (METRICS_DIR, OUTPUT_PATH), not CLI arguments. The workflow was calling it with --artifacts-dir and --output which don't exist.

Found while evaluating PR #104 (now closed as redundant).

Changes

• Changed workflow step from CLI args to env vars

Testing

• Local validation passes
• Script correctly reads METRICS_DIR and OUTPUT_PATH from environment

Automated Status Summary

Scope

• Scope section missing from source issue.

Tasks

• Tasks section missing from source issue.

Acceptance criteria

• Acceptance criteria section missing from source issue.

Head SHA: e64a323
Latest Runs: ✅ success — Gate
Required: gate: ✅ success

Workflow / Job	Result	Logs
Agents PR meta manager	❔ in progress	View run
CI Autofix Loop	✅ success	View run
Copilot code review	✅ success	View run
Gate	✅ success	View run
Health 40 Sweep	✅ success	View run
Health 44 Gate Branch Protection	✅ success	View run
Health 45 Agents Guard	✅ success	View run
Health 50 Security Scan	✅ success	View run
Maint 52 Validate Workflows	✅ success	View run
PR 11 - Minimal invariant CI	✅ success	View run
Selftest CI	✅ success	View run

[Copilot]

Pull request overview

This PR fixes a bug in the agents-weekly-metrics workflow where the aggregate_agent_metrics.py script was being invoked with CLI arguments (--artifacts-dir and --output) that don't exist. The script actually reads configuration from environment variables (METRICS_DIR and OUTPUT_PATH).

Key changes:

• Replaced CLI argument invocation with environment variable configuration for the metrics aggregation script

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[github-actions]

Automated Status Summary

Head SHA: 040992f
Latest Runs: ⏳ pending — Gate
Required contexts: Gate / gate, Health 45 Agents Guard / Enforce agents workflow protections
Required: core tests (3.11): ⏳ pending, core tests (3.12): ⏳ pending, docker smoke: ⏳ pending, gate: ⏳ pending

Workflow / Job	Result	Logs
(no jobs reported)	⏳ pending	—

Coverage Overview

• Coverage history entries: 1

Coverage Trend

Metric	Value
Current	77.97%
Baseline	0.00%
Delta	+77.97%
Minimum	70.00%
Status	✅ Pass

Updated automatically; will refresh on subsequent CI/Docker completions.

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Keepalive checklist

Scope

No scope information available

Tasks

• No tasks defined

Acceptance criteria

• No acceptance criteria defined

[github-actions]

🤖 Keepalive Loop Status

PR #134 | Agent: Codex | Iteration 0/5

Current State

Metric	Value
Iteration progress	[----------] 0/5
Action	wait (missing-agent-label)
Gate	success
Tasks	0/2 complete
Keepalive	❌ disabled
Autofix	❌ disabled

⚠️ Failure Tracking

| Consecutive failures | 1/3 |
| Reason | missing-agent-label |