Agent! v1.0.80.170

🌐 New Provider: OpenRouter

• OpenRouter as a first-class LLM provider — access hundreds of models through a single API key
• Protocol toggle — switch between OpenAI-compatible and Anthropic-compatible endpoints per model
• Smart model catalog — fetches and filters OpenRouter's /models to only show tool-capable models with real context windows (strips embedding, image-only, and preview entries)
• ClaudeService integration — Anthropic-compatible OpenRouter models route through ClaudeService with proper Bearer auth (sk-or- key detection) and tool forwarding
• Full UI support — settings panel, model picker, fallback chain, and tab configuration all wired up

🛡️ Error Handling & Reliability

• Stop infinite-loop on misdetected context overflow — narrowed detection to require "exceed/too long/too many" alongside keywords; plain max_tokens in unrelated parameter errors no longer triggers aggressive pruning
• Short-circuit OpenRouter free-tier 429s — detects shared free-tier rate limits and bails immediately instead of churning through futile retries
• Prune loop cap — if pruning messages doesn't actually shrink history, stops retrying (max 3 consecutive prune attempts)

✏️ Code Editing Guardrails

• Duplicate edit rejection — code-level detection blocks the exact same (file, old_string) pair on consecutive turns, preventing stuck loops
• Edit cycle detection — tracks files edited across recent turns and nudges when the same 2–3 files keep alternating without progress
• Stuck threshold lowered — nudge at 2 failures (was 3), give-up at 4–6 failures (was 6)
• Edit size safety — refuses edits with old_string over 50 lines; requires minimum 10 chars for replace_all
• Source verification for diff_apply — validates that the provided source parameter matches actual file content at the specified lines, preventing silent corruption from stale line numbers
• Truncation warning on write_file — warns when new content is less than 50% of the original file size
• Post-edit diagnostic gating — swiftc -parse checks only run after 2+ consecutive edit failures, avoiding noisy false positives

📝 System Prompt Improvements

• Commitment Rule — new hard contract: claiming "I found the problem" MUST be followed by an edit tool call, not another read. Repeated certainty claims without shipping edits are flagged as a failure mode
• Anti-hallucination reinforcement — stronger guidance against fabricating findings from incomplete reads

🔧 Other

• AgentTools bumped to v2.52.0
• Version bumped to 1.0.80 (build 170)