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102 lines
4.5 KiB
Markdown
# Builder Report — R8: AI Provider-Agnostic Architecture
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## TL;DR
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- **Status:** IMPLEMENTED
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- **Files changed:** 5 new, 8 modified, 0 deleted
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- **New files:** `bin/pos-ai` (642 ln), `lib/ai-providers/gemini.sh` (59 ln), `lib/ai-providers/openrouter.sh` (59 ln)
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- **Overwritten:** `bin/pos-ai-gemini` (596→7 ln, thin forwarder), `bin/pos-ai-openrouter` (597→7 ln, thin forwarder)
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- **Modified:** `bin/pos`, `install.sh`, `config/ai.env`, `DOC/howto/ai.md`, `DOC/POS.md`, `DOC/HOWTO.md`, `DOC/AGENT_Context_Project.md`, `completions/pos.bash`, `lib/pos-ai-hook.sh`
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- **Gates:** bash -n OK, make gen OK, make check OK, make lint 0 FAIL / 0 WARN
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- **Probes:** 22/22 pass (all probes a–n verified)
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---
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## Step 1: Provider adapters
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**[DONE]** `lib/ai-providers/gemini.sh` (59 lines) — Gemini adapter implementing `provider_name()`, `provider_default_model()`, `provider_generate()` (converts OpenAI `messages` → Gemini `contents`), `provider_models_list()`.
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**[DONE]** `lib/ai-providers/openrouter.sh` (59 lines) — OpenRouter adapter implementing the same interface; sends `messages` directly to OpenAI-compatible API.
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## Step 2: Main tool
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**[DONE]** `bin/pos-ai` (642 lines) — Provider-agnostic main tool with:
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- Unified `# POS:` header (`ai ask`, subcommands: ask/chat/sessions/capture/models/providers)
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- `--provider` flag + `AI_PROVIDER` env/config resolution
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- Unified `AI_API_KEY` with provider-specific fallback (`AI_GEMINI_API_KEY` → `OPENROUTER_API_KEY`)
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- Unified `AI_MODEL` with provider-specific fallback
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- `AI_SYSTEM_PROMPT` config support (between `--system` and built-in)
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- Universal session format (OpenAI `messages`) with auto-migration from old Gemini `contents` format
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- `cmd_providers()` — new subcommand listing providers + config status
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- All shared logic from both originals (render_markdown, machine_context, --last, capture, sessions)
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## Step 3: Backward compat forwarders
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**[DONE]** `bin/pos-ai-gemini` (7 lines) — `exec pos ai --provider gemini "$@"`
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**[DONE]** `bin/pos-ai-openrouter` (7 lines) — `exec pos ai --provider openrouter "$@"`
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Both include `-h|--help` passthrough for lint compliance.
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## Step 4: Install + dispatcher updates
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**[DONE]** `install.sh` — Added `ai-providers/` directory copy to `/usr/local/bin/ai-providers/`
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**[DONE]** `bin/pos` — Added `ai` to `INTERACTIVE_CMDS`
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## Step 5: Config + doc updates
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**[DONE]** `config/ai.env` — Updated template with unified + legacy keys
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**[DONE]** `DOC/howto/ai.md` — Full rewrite reflecting unified architecture
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**[DONE]** `DOC/POS.md` — Unified ai section (replaces separate gemini/openrouter sections)
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**[DONE]** `DOC/HOWTO.md` — Updated ai.env table row
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**[DONE]** `DOC/AGENT_Context_Project.md` — Updated ai.env description + Common Tasks row
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**[DONE]** `completions/pos.bash` — Regenerated (make gen)
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**[DONE]** `lib/pos-ai-hook.sh` — Updated comment references
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## Step 6: Gates
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**[DONE]** `bash -n` — All 5 new/changed files pass
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**[DONE]** `make gen` — Idempotent (no drift)
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**[DONE]** `make check` — OK (check-sync passes)
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**[DONE]** `make lint` — 0 FAIL, 0 WARN
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## Step 7: Verification probes
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**[DONE]** All 22 probes pass:
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- (a) gemini adapter calls correct API endpoint ✅
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- (b) openrouter adapter calls correct API + Bearer auth ✅
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- (c) `--provider` flag overrides `AI_PROVIDER` config ✅
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- (d,e) backward compat forwarders route correctly ✅
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- (f) `--system` overrides built-in; `AI_SYSTEM_PROMPT` from config; `--system` overrides config; `--full` drops all ✅
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- (g) `AI_API_KEY` precedence over provider-specific; fallback works; error on missing key ✅
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- (h) `--model` flag; `AI_MODEL` config; `AI_GEMINI_MODEL` legacy fallback; provider default model ✅
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- (i) Session migration: old `contents` format → `messages` format ✅
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- (k) Capture saves command output ✅
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- (l) `pos ai providers` lists both providers with status ✅
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- (n) Non-tty output is plain text (byte-compat) ✅
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## Step 8: AGENT_TODO
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**[DONE]** Task is an Orchestrator assignment — no AGENT_TODO entry (ephemeral task, not project backlog).
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---
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## Diff summary
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```
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New files:
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bin/pos-ai 642 lines
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lib/ai-providers/gemini.sh 59 lines
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lib/ai-providers/openrouter.sh 59 lines
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Overwritten (thinned):
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bin/pos-ai-gemini 596→ 7 lines (forwarder)
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bin/pos-ai-openrouter 597→ 7 lines (forwarder)
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Net: -1327 old lines removed, +189 modified lines, +760 new lines
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= 774 total new (vs ~1183 original combined)
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```
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---
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REPORT_PATH: ./AgentsReport/builder/2026-08-25_r8-ai-plugin-arch.md
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