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* docs: D79 — Phase 5 constitutional layer (ADR 0012 + ADR 0002 Amendment 8 + ADR 0013)
Three coupled governance documents land together as the Phase 5 constitutional
layer (Iron Rule 11 IDR — reviewing them separately cannot verify
consumer-producer alignment). Phase 5 opens 2026-05-26; D79 is governance-only,
no code changes.
- ADR 0012 (Phase 5 charter) — port OCP's plan-usage probe to
`lib/providers/anthropic.mjs:quotaStatus()` (D80) + extend
`/v0/management/dashboard-data` for new shape (D81) + Claude.ai-style
dashboard restructure with 1-min auto-refresh + manual refresh (D82) +
Suite 38/39 tests (D83) + optional mistral probe at D84 (codex skipped —
no public API) + v0.5.0 close (maintainer-triggered). ~6 D-days.
- ADR 0002 Amendment 8 (direct-API READ-ONLY exemption) — plugin contract
amendment permitting quotaStatus() to call provider HTTP APIs directly,
subject to three constraints: READ-ONLY (no mutating calls),
subscription-scope (reuses spawn-path credentials), idempotent failure
(returns null on any error, never throws). No other contract method gains
this permission.
- ADR 0013 (OAuth READ-ONLY consumption + schema-drift mitigation) —
implementation discipline for ADR 0002 Amendment 8. Seven rules: (1)
credential reuse via plugin's readAuthArtifact(), (2) READ-ONLY at wire
(max_tokens:1, headers-only parse, body discarded), (3) cache TTL 5min +
60s-3600s exponential refresh backoff + stale-cache-on-failure, (4)
opt-in via `~/.olp/config.json providers.<name>.quota_probe_enabled`
(default false), (5) schema-drift mitigation via dual-path verification
(compiled-binary `strings` + live API probe diff), (6) failure
transparency through `olp doctor` + dashboard staleness markers, (7)
explicit out-of-scope clarifications.
Pre-flight institutional-knowledge audit (Iron Rule 12 prior-art search)
captured at `~/.cc-rules/memory/learnings/anthropic_plan_usage_probe_schema_2026_05_26.md`
(cross-machine git-sync). Findings:
- OCP probe (server.mjs:842-1109) still works against current
api.anthropic.com — tested live from PI231 OAuth credentials 2026-05-26.
- 13 `anthropic-ratelimit-unified-*` response headers confirmed
(3 new since OCP 2026-04 capture: 5h-status, 7d-status, overage-reset;
no removals or renames).
- Claude Code v2.1.x is now distributed as compiled native binary
(Mach-O on macOS, ELF on Linux) — OCP's "grep cli.js" verification is no
longer applicable. ADR 0013 Rule 5 replaces with dual-path verification
(`strings` over the binary + live API probe diff).
- OAuth refresh path (platform.claude.com/v1/oauth/token + client_id
9d1c250a-...) all unchanged.
Authority:
- ALIGNMENT.md Rule 1 (citation): audit memory + OCP server.mjs:842-1109 +
live `/v1/messages` probe transcript 2026-05-26.
- ALIGNMENT.md Rule 2 (provider-CLI-as-authority): Amendment 8 documents the
exemption; the probe mirrors observed CLI behaviour.
- ALIGNMENT.md Rule 5 (CI alignment.yml): not triggered (docs/ excluded by
workflow `paths:` filter); blacklisted `/api/oauth/usage` token referenced
only as meta-references ("must continue to blacklist").
- CLAUDE.md release_kit overlay: Phase 5 open; D-day commits stay under
"Unreleased" until maintainer-triggered v0.5.0 close.
Iron Rule 10: fresh-context reviewer required before merge per CLAUDE.md
hard requirement #3.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* docs: D79 fold-in — 6 in-PR nits from fresh-context reviewer (PR #50)
Reviewer verdict: APPROVE_WITH_MINOR (0 blocking, 9 nits — 6 in-PR, 3 outside-PR).
Folding in the 6 in-PR nits here; the 3 outside-PR ones (audit-memory chronology,
audit-memory D80/D81 mapping, ALIGNMENT.md cross-ref to Amendment 8) are deferred.
Folded-in nits:
1. ADR 0002 Amendment 8: added a 5th "does NOT permit" bullet making per-endpoint
containment explicit. Amendment 8 permits the kind of call; ADR 0013 Rule 2
enumerates which specific endpoint. Re-opening per-endpoint scope requires an
ADR 0013 amendment, not a Amendment-8-only interpretation.
2. ADR 0013 Rule 5: added "Path A prerequisites" paragraph documenting that
strings (GNU/BSD binutils/coreutils) + Claude Code v2.1.x install are required
for compiled-binary verification. Windows reviewers need WSL or binutils-mingw.
3. ADR 0013 Rule 5: added "Trigger for re-running the diff" paragraph naming three
explicit hooks for major-version-bump detection: Annual Alignment Audit
(14 May), olp doctor anthropic.quota_probe_reachable failure, manual
maintainer attention. Documented graceful-degradation failure mode.
4. ADR 0012 D80 estimate: 1.5d → 2d. Reviewer flagged 1.5d as optimistic
compared to D61-D63 (2.5d for narrower SSE heartbeat scope). Aligning.
5. ADR 0012 D84: moved Mistral GO/NO-GO spike to D79 close (before D80 starts),
not mid-phase. Reduces mid-phase scope drift risk. Outcome will be amended
into this charter as a D79-close amendment.
6. ADR 0012 Authority + cross-references: replaced "Claude Code <version> §
OAuth bearer + ratelimit headers" with "compiled-binary strings evidence
per audit memory § Path A". Claude Code v2.1.x has no traditional section
structure because it is a Mach-O / ELF compiled binary.
Deferred (outside-PR) nits documented in PR review thread:
- Audit memory historical-table chronology error (cb6c2a8 placed last; was
second chronologically — narrative arc still holds, dates need correction).
- Audit memory D80/D81 mapping mismatch (memory says D81 adds new fields;
ADR 0012 says D80 parses all 13).
- ALIGNMENT.md cross-reference to Amendment 8 (Class-specific Exceptions
subsection should name Amendment 8 explicitly).
All three outside-PR items are docs-only and not load-bearing for D80
implementation. Will fold in either at D80 commit (audit-memory updates)
or as a tiny constitutional cleanup PR (ALIGNMENT.md cross-ref).
Iron Rule 10: reviewer was a fresh-context opus subagent; their full review
is recorded in PR #50 thread.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---------
Co-authored-by: dtzp555 <dtzp555@gmail.com>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
8.3 KiB
8.3 KiB
Architecture Decision Records — OLP
This directory holds the OLP Architecture Decision Records (ADRs) — short documents that capture the why behind structural choices.
Read these before proposing governance, plug-in contract, IR, fallback, cache, or provider-inclusion changes.
Numbering
ADRs in OLP start at 0001 (the project's founding decision). OLP did not inherit the 0001 placeholder convention OCP used; the project starts on a fresh numbering line.
New ADRs increment from the highest existing number. Filenames are NNNN-<short-slug>.md.
Index
| ADR | Title | What it covers |
|---|---|---|
| 0001 | Project Founding | Why OLP exists (the 2026-06-15 Anthropic billing-split trigger), mission + non-mission boundaries, explicit supersession of OCP ADR 0005 "No Multi-Provider". |
| 0002 | Plugin Architecture for Providers | The lib/providers/<name>.mjs plug-in model, the Provider contract (name / models / auth / spawn / estimateCost / quotaStatus / healthCheck / hints), static in-tree registry, why-not full external plugin discovery. |
| 0003 | Intermediate Representation (IR) Design | The OLP-internal canonical request/response shape between the OpenAI-compat entry surface and each provider plugin. v1.0 IR fields, IR-vs-OpenAI-vs-native-provider three-shape model, IR is not exposed externally. |
| 0004 | Fallback Engine Semantics & Safety | Trigger taxonomy (Hard / Soft / Deterministic-deferred / Cost-aware-deferred), idempotent-failure safety (first-chunk rule), chain advancement one-at-a-time, observability headers. |
| 0005 | Cache Layer Cross-Provider Design | Cache key composition over (provider, model, messages, …), per-model isolation, D1+D2+D3+D4 port from OCP v3.13.0, cross-provider fallback cache behaviour (correct miss). |
| 0006 | Provider Inclusion / Exclusion + Risk-Tier Framework | The 4-tier classification (A excluded by default / B explicit consent / C opt-in / D eligible-for-default-enabled), Candidate-vs-Enabled distinction, current v0.1 candidate inventory (0 Enabled), Antigravity exclusion rationale (named prohibition + no cost advantage + reinstatement friction; pending primary-source pin), consent UX, future provider addition procedure. |
| 0007 | Multi-Key Auth (lib/keys.mjs) |
Phase 2 design ADR (D43-B, 2026-05-25). Option 2 (filesystem manifest at ~/.olp/keys/<key-id>/manifest.json) + opaque olp_<32-byte> token + SHA-256 hash. Owner / guest / anonymous tier gating with explicit config.json auth.allow_anonymous (default false). Bootstrap keygen command surface + OLP_OWNER_TOKEN env override with stable synthetic key_id. Audit ndjson append-only at ~/.olp/logs/audit.ndjson, warn+1-retry on append failure. Rejects direct SQLite port at v0.2.0 due to Node baseline (engines >=18 + CI 20/24 vs node:sqlite added 22.5.0 / RC); Option 3 hybrid documented as forward path when Phase 3+ Dashboard / SQL-aggregate quota arrives. |
| 0008 | Dashboard + Audit Query Layer | Phase 3 design ADR (D48, 2026-05-25). Static HTML dashboard + vanilla JS + fetch (no build step). In-memory ndjson scan for aggregate queries (O(N) per call; family-scale acceptable; defers SQLite migration to Option 3 hybrid trigger). Daily audit rotation audit-YYYY-MM-DD.ndjson on first append after UTC midnight; cross-file query layer for rolling 30-day windows. Owner-only gating on /dashboard + 3 /v0/management/* JSON endpoints reusing ADR 0007 § 7 auth model. 30s page poll (no SSE infra). Panels: per-provider quota / 24h request+cache+fallback / 30d spend trend / top-N fallback chains per spec § 4.6. Opens ADR 0007 § 12 Phase 3 deferral (Dashboard + audit query + rotation). |
| 0009 | Anthropic Interactive-Mode Path (Placeholder) | Placeholder ADR (2026-05-25, Draft) — blocked on OCP ADR 0007 P0 experiment outcome. Records the maintainer's "wait + port" decision: do NOT independently implement; ride OCP's P0 result. If P0 confirms Transport A (stdio NDJSON) or B (PTY) bills as subscription rather than Agent SDK credit, port to OLP lib/providers/anthropic.mjs (Option 1 parallel impl, or Option 2 OCP-as-backend; decision deferred to P0-resolution time). If P0 fails on both, shelve. No Phase 4 D-day scheduled until P0 lands AND maintainer issues explicit "go" naming this ADR. |
| 0010 | Phase 4 Charter — Operator + Client UX | Phase 4 scope ratification (2026-05-26, Accepted). Phase 4 = operator + client UX (SSE heartbeat / olp CLI + doctor / olp-connect zero-config + Telegram-Discord plugin + IDE docs bundle). ~13 D-days, D60 → v0.4.0. Records the explicit decision to DEFER /v1/messages (Anthropic-shape entry surface) on the rationale that under ADR 0009 P0 failure it provides no billing benefit AND degrades worse on fallback than OpenAI-shape clients. Re-open trigger: ADR 0009 P0 success + maintainer-named family CC user. Also closes the OCP-OLP port co-host ambiguity from ADR 0001 (default OLP_PORT 3456 → 4567). |
| 0011 | Anonymous-Key Deployment-Context Limits (Trusted-LAN Invariant) | D70 (2026-05-26, Accepted). Codifies the trust posture for /health.anonymousKey opt-in field (D69) + bin/olp-connect zero-config consumer (D68). Three-prerequisite gate (auth.advertise_anonymous_key=true + auth.allow_anonymous=true + an active key with plaintext_advertise field). Guest-tier-only restriction (createKey() + CLI reject owner+advertise). Trusted-LAN deployment invariant (loopback / RFC1918 / tailnet / .local / .internal — soft constraint at v0.4.0; hard enforcement deferred until OLP gains a public-deployment recipe). Re-evaluation trigger: any "expose to public internet" README mode. |
| 0012 | Phase 5 Charter — Provider Quota Probes + Dashboard Enrichment | Phase 5 scope ratification (2026-05-26, Accepted). Phase 5 = port OCP's plan-usage probe to lib/providers/anthropic.mjs:quotaStatus() + Claude.ai-style dashboard enrichment (1-min auto-refresh + manual refresh + per-provider rows with utilization bars, reset countdowns, status badges) + optional mistral probe at D84 (codex explicitly skipped — no public API). ~6 D-days, D79 → v0.5.0. Companion to ADR 0002 Amendment 8 (direct-API READ-ONLY exemption) + ADR 0013 (OAuth READ-ONLY consumption rules). Closes v1.x roadmap #8 (dashboard enrichment). Re-confirmed schema 2026-05-26 via compiled-binary strings + live API probe; 3 new fields since OCP 2026-04 capture, no removals. |
| 0013 | OAuth READ-ONLY Consumption Rules + Schema-Drift Mitigation Protocol | D79 (2026-05-26, Accepted). Implementation discipline for ADR 0002 Amendment 8. Seven rules covering: credential reuse with spawn path (no new OAuth grant); READ-ONLY at the wire (one probe per cache miss, max_tokens:1, headers-only parse, discard body); cache TTL 5min + 60s-3600s exponential refresh backoff + stale-cache-on-failure; opt-in via ~/.olp/config.json providers.<name>.quota_probe_enabled (default false); schema-drift mitigation via dual-path verification (compiled-binary strings + live API probe diff); failure transparency through olp doctor + dashboard staleness markers; out-of-scope clarifications. Bound by ~/.cc-rules/memory/learnings/anthropic_plan_usage_probe_schema_2026_05_26.md as the live schema pin. |
When to write a new ADR
Open one whenever:
- A structural rule is being added or changed (e.g., new IR field, new trigger type, new cache-key composition).
- A new provider plugin is being proposed (per ADR 0002 + ADR 0006 — ADR is a hard prerequisite for plugin merge).
- A decision encodes a lesson from an external event (provider policy change, drift incident).
- A future contributor reading the code alone could plausibly undo or re-litigate the choice.
Skip ADRs for routine implementation choices (algorithm pick, naming) — those belong in commit messages.
Format
Keep ADRs short — Context / Decision / Consequences / Alternatives is the standard skeleton. Cite incidents, PRs, or commits where useful. Length per ADR ~150–250 lines; longer than that, split.