Merge branch 'codex/invariant-package-registration-gate' into codex/package-invariant-checks

# Conflicts:
#	.agents/notes/implemented/architecture/2026-07-19-package-invariant-runtime-contracts.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-19-package-invariant-runtime-contracts.md
#	.agents/notes/implemented/architecture/2026-07-19-package-invariant-runtime-contracts.zh.md
#	.agents/notes/implemented/architecture/2026-07-19-package-owned-invariant-service.i18n.yaml
#	docs/rfc/INDEX.md
#	packages/AGENTS.md
This commit is contained in:
Tianyi Cui
2026-07-20 00:54:28 +08:00
683 changed files with 7058 additions and 2430 deletions

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@@ -14,6 +14,6 @@ Zero-dependency primitives shared across the other groups. A package lands here
`dsh-home` gives every package the same configurable Harness home without assigning that cross-cutting fact to bash, skills, or a composition bundle. It resolves an explicit value before `$DSH_HOME`, falls back to `~/.dsh`, and returns an absolute path without caching, creating, or mutating anything.
`dsh-timeout` follows the same shape for the timeout family: `dsh-bash` and `dsh-web-fetch-local` each fuse a caller's cancellation with a deadline and later classify "timed out" vs "cancelled" by depending on `dsh-timeout` alone. It deliberately owns only the timing/classification half — the *termination* (SIGKILL a process group, tear down a fetch socket) stays in each capability, because no shared layer can own every capability's kill (see [the timeout-library RFC](../../docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md)).
`dsh-timeout` follows the same shape for the timeout family: `dsh-bash` and `dsh-web-fetch-local` each fuse a caller's cancellation with a deadline and later classify "timed out" vs "cancelled" by depending on `dsh-timeout` alone. It deliberately owns only the timing/classification half — the *termination* (SIGKILL a process group, tear down a fetch socket) stays in each capability, because no shared layer can own every capability's kill (see [the timeout-library Agent Note](../../.agents/notes/implemented/architecture/2026-07-06-timeout-deadline-library.md)).
`dsh-retention` is the same split for bounded tool output: a tool (`glob`/`grep`/`bash`/`web_fetch`/`web_search`) feeds items or text into a retainer and gets back what it kept and exactly what it omitted — while grouping, exit codes, provider errors, and recovery prose stay tool-owned. It deliberately owns only the retention mechanic; `truncated` is a budget fact, never an "incomplete inspection" state (see [the retention-library RFC](../../docs/rfc/implemented/architecture/2026-07-06-tool-result-retention-library.md)).
`dsh-retention` is the same split for bounded tool output: a tool (`glob`/`grep`/`bash`/`web_fetch`/`web_search`) feeds items or text into a retainer and gets back what it kept and exactly what it omitted — while grouping, exit codes, provider errors, and recovery prose stay tool-owned. It deliberately owns only the retention mechanic; `truncated` is a budget fact, never an "incomplete inspection" state (see [the retention-library Agent Note](../../.agents/notes/implemented/architecture/2026-07-06-tool-result-retention-library.md)).

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@@ -12,6 +12,10 @@ The resolver reads its inputs at call time. It does not cache a result, create t
Indirectly, through `dsh-tool-bash`, which exposes the resolved path to model bash as `DSH_HOME` without adding a prompt section.
#### KV Cache effect
No direct invalidation; the named consumer owns any request-prefix changes.
## Known Limitations and Deferred Work
- **Resolution only** — the resolver makes a path absolute but does not create it, check access, or canonicalize symlinks; each consumer owns those filesystem decisions.

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@@ -2,7 +2,7 @@
A dependency-light **retention** library: bounded model-facing output for tools that must cap how much context they return. A caller feeds items or text chunks into a bounded object, then gets the retained content plus exact omission metadata.
The library owns **only** the mechanical question *"what did we keep, and what did we omit?"*. Tool-specific code keeps its business semantics: file grouping, line numbering, exit codes, provider error states, per-line preview truncation, spill files, and the model-facing prose. This is the boundary the [RFC](../../../docs/rfc/implemented/architecture/2026-07-06-tool-result-retention-library.md) draws.
The library owns **only** the mechanical question *"what did we keep, and what did we omit?"*. Tool-specific code keeps its business semantics: file grouping, line numbering, exit codes, provider error states, per-line preview truncation, spill files, and the model-facing prose. This is the boundary the [Agent Note](../../../.agents/notes/implemented/architecture/2026-07-06-tool-result-retention-library.md) draws.
It is a **library, not a service or plugin**: no `ctx`, registers nothing, emits no events. The only state is per-retainer (one accumulation), never cross-call. Tool packages import it directly.
@@ -85,6 +85,10 @@ const footer = formatRetentionNotice(
Indirectly, through tool consumers that render retained content and omission metadata.
#### KV Cache effect
No direct invalidation; the named consumer owns any request-prefix changes.
## Known Limitations and Deferred Work
- **Item retention supports `head` only** — tail, head/tail, pagination, grouping, and provider-completeness semantics remain tool-owned.

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@@ -2,7 +2,7 @@
The **timing-and-classification** half of a timeout — a zero-dependency library of pure functions (no runtime harness deps) shared by every capability that clamps a caller's timeout hint, arms a deadline, and later has to tell "timed out" apart from "cancelled".
It owns **no termination**. The signal it hands out only *notifies*; actually stopping the work stays in each capability, because that mechanism differs — bash SIGKILLs an OS process group, web tears down a `fetch` socket — and no shared layer can own all of them. This is the boundary the [RFC](../../../docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md) draws: share the timing/classification, keep the hard kill local.
It owns **no termination**. The signal it hands out only *notifies*; actually stopping the work stays in each capability, because that mechanism differs — bash SIGKILLs an OS process group, web tears down a `fetch` socket — and no shared layer can own all of them. This is the boundary the [Agent Note](../../../.agents/notes/implemented/architecture/2026-07-06-timeout-deadline-library.md) draws: share the timing/classification, keep the hard kill local.
It is a **library, not a service or plugin**: no `ctx`, registers nothing, holds no state, emits no events. A "timeout service" would have to understand how to stop every capability's work — exactly the knowledge a microkernel keeps out of shared layers.
@@ -52,6 +52,10 @@ Local file `read`/`write`/`edit` take no `timeoutMs`: a syscall is best-effort-a
Indirectly, through consumers such as `dsh-timeout-policy`, which may replace a provider result with a retained timeout error or suppress a late result.
#### KV Cache effect
No direct invalidation; the named consumer owns any request-prefix changes.
## Known Limitations and Deferred Work
- **Notification only** — a deadline cannot stop work that ignores its signal; every capability still needs its own socket/process/task termination path.