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fix(core): harden v2 instruction boundaries

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Kit Langton 2026-06-04 21:44:02 -04:00
commit 512b3e9967
8 changed files with 202 additions and 23 deletions
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CONTEXT.md
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@ -60,6 +60,7 @@ The point immediately before a provider call, after durable input promotion and
- Ordinary **Context Source** loaders return values directly; loaders that intentionally use stale-while-revalidate may explicitly return **Unavailable Context**.
- Nested project instruction discovery after successful reads remains a follow-up; when implemented, discovered instructions must be admitted durably at the next **Safe Provider-Turn Boundary**.
- Location-scoped services naturally re-resolve effective context when a moved session next runs in its destination location.
- Moving a Session clears its active **Context Epoch**, so the destination must initialize a complete baseline before another prompt can promote.
- Instruction discovery, source identity, persistence, and file loading belong to the instruction service; the **System Context** abstraction only composes effectful producers and renders loaded values.
- The first instruction-service slice observes global and upward project `AGENTS.md` files as one ordered aggregate **Context Source** at each **Safe Provider-Turn Boundary**.
- Built-in and instruction context producers register through the **System Context Registry** with stable contribution keys. Plugin-defined context registration and hot-reload lifecycle remain a follow-up built on the same scoped registry seam.
@ -74,6 +75,7 @@ The point immediately before a provider call, after durable input promotion and
- A model/provider switch always starts a new **Context Epoch** while preserving chronological conversation history.
- A **Mid-Conversation System Message** lowers to the provider's native chronological instruction role when supported and to a wrapped chronological fallback otherwise.
- When the effective aggregate instruction set changes, its **Mid-Conversation System Message** includes the complete current ordered set and supersedes the prior aggregate value; when no ambient instructions remain, the message states that previously loaded instructions no longer apply.
- Ambient project instruction discovery honors `OPENCODE_DISABLE_PROJECT_CONFIG`; global instructions remain eligible.
## Example dialogue