docs: split AGENTS.md into a short index, and derive what the tree already answers - #66
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AGENTS.md was 2,429 lines and 168 KB, loaded into every agent session through CLAUDE.md's `@AGENTS.md`. Published guidance converges on the same number from both directions: Anthropic's own best-practices page says to keep CLAUDE.md short and warns that a bloated one causes the actual instructions to be ignored, and a survey across 2,500+ repositories found returns falling off past ~150 lines while inference cost rose 20-23%. So this is a split rather than a deletion. Every line of prose survives, verbatim, in docs/: docs/architecture.md crate map, theme, responsiveness docs/building.md every build beyond the three common ones docs/ci.md the library dependency, the Actions cache budget docs/gotchas.md the reasoning, unchanged docs/web.md the page, the tab claim, the relay docs/roadmap.md known gaps What is left in AGENTS.md is what an agent needs on every task and cannot infer from the code: the one-session-in-the-daemon shape, a crate table, the three commands CI enforces, and the dozen rules whose violation is silent -- pinning the library crates individually, a colour literal, a missing `use<>`, `spawn_blocking` on wasm, FTS5, a partial store wipe. 99 lines. The deep material is one link away and named by subject, which is where an agent will look for it rather than carrying it always. Two code comments named "Still to do" by section and now name docs/roadmap.md; the other ~17 references to AGENTS.md still resolve, since the index routes by subject. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KxsJVCeKUx3xFiGM92sPn6
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📝 WalkthroughWalkthroughThe change adds extensive project documentation for architecture, build and CI workflows, runtime gotchas, roadmap items, and the web front end. Two existing comments now reference ChangesProject documentation
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Second pass over the split: the always-loaded file was still asserting
things the tree already answers, and three of them were measurably wrong.
Found by checking rather than by reading:
- CI runs `--all-features`; the block claiming to be "what CI enforces"
omitted it on all three commands.
- "eight whatsapp-rust crates" — Cargo.toml declares five directly, and
the profile table names crates the dependency table does not.
- "~28 px(...) literals" — `grep -ro 'px(' crates/gui/src` counts 175.
- "session/whatsapp/mod.rs (~3.7k)" is 4,500 lines; store.rs (~3.2k) is
3,397.
- `crates/gui/src/theme.rs`, which the first pass cited, is a directory.
- `xtask/` is not in `exclude` at all — it is simply not a member.
So AGENTS.md now says up front that it holds decisions, not inventories,
and every countable claim is replaced by the source that answers it: the
crate table by `Cargo.toml`'s members plus each crate's `lib.rs` header,
the command flags by `.github/workflows/ci.yml` (with an explicit "check
there rather than copying from here"), the colour exceptions by the theme
module, the transports by the two directories a split may live in, the
task list by `cargo xtask help`. What stays is the dozen rules whose
violation is silent, which is the half no amount of reading derives.
The layering replaces the table: it is what a crate's placement has to
respect, and unlike a list of crates it does not go stale when one is
added. The gui entry now names the invariant (never depends on session)
and where a violation would show, including the wasm-only daemon
dependency that looks like an exception and is not.
In docs/: ci.md and roadmap.md gained a preamble saying their figures are
measurements from one commit and the cache ceiling is GitHub's number;
the stale counts became the commands that produce them.
Every path AGENTS.md names is verified to exist, and every line of the
original prose still has a home apart from the seven rewritten above.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxsJVCeKUx3xFiGM92sPn6
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Inline comments:
In `@docs/building.md`:
- Around line 4-6: Update the verification commands in the building guide to
match CI exactly: use cargo fmt --all -- --check, and add --all-features to both
the workspace clippy and workspace test commands. Apply the same corrections to
the additional command block identified in the comment.
- Line 39: Update the repository-relative Cargo config references in
docs/building.md by removing the leading slash from both occurrences, including
the references near the link flags and alias, so they point to
.cargo/config.toml.
- Line 95: Update the CHROMEDRIVER assignment in the build instructions to first
validate and use the executable at $CHROMEWEBDRIVER/chromedriver when
CHROMEWEBDRIVER is set, then fall back to command -v chromedriver when it is
unavailable; avoid relying solely on which chromedriver.
In `@docs/gotchas.md`:
- Around line 316-318: Qualify the `only_this_user_can_write` documentation in
the plugin trust discussion to state that its guarantee applies only on Unix,
unless non-Unix ACL and reparse-point checks are implemented in `discover`
before loading the plugin directory and modules.
- Around line 651-653: Correct the Cargo package-selection example in the
surrounding documentation so it does not use `url` as the selected package,
since `url` is not a workspace member. Replace it with an existing workspace
member that depends on `url`, or describe a minimal fixture where `url` is
explicitly a workspace member, while preserving the intended profile-inheritance
check.
In `@docs/roadmap.md`:
- Line 168: Remove the extra space before the comma in the “Retry, every...”
sentence so the rendered text reads “Retry, every...”.
In `@docs/web.md`:
- Line 275: Update the call-capability wording near the existing “placed and
answered” text in the web API documentation to match the limitation documented
later: state that this page can place and decline calls, or explicitly scope
answering capability to oxidezapd. Ensure both sections communicate the same
supported behavior.
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AGENTS.mdcrates/daemon/src/plugins/mod.rscrates/daemon/src/server.rsdocs/architecture.mddocs/building.mddocs/ci.mddocs/gotchas.mddocs/roadmap.mddocs/web.md
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Addresses the Codex review on #66. Of its three P2 findings, one was already fixed by the second commit (the xtask `cargo fmt` line, dropped in the first pass and restored in the second). The other two were real, and the second is wider than the comment that reported it. Qualify the toolchain. The summary said "Rust, stable toolchain" in the same sentence that advertises a `wasm32-unknown-unknown` build, which is misleading in the one direction that costs time: the web build needs nightly for `-Z build-std`, and someone provisioning from this line alone gets an unexpected toolchain download or a failure. It now says which build is which and points at docs/building.md. Retarget every reference the split broke. The move left pointers aimed at where the text used to be, and following one no longer reaches the reasoning -- which is worse than no pointer, since it reads as though it resolves. Three kinds, all of them found by grepping rather than by recalling what had moved: - Cross-document: docs/building.md's "See the gotcha", and two in docs/roadmap.md that said "above" about text now in another file. - Code comments naming content that moved: eleven of them, to docs/gotchas.md, docs/roadmap.md, docs/web.md and docs/ci.md respectively, including the two the review named (Cargo.toml's per-platform cache measurement and the SDK's cleared-vs-not-carried note). - Left alone: the five that still resolve, all naming rules that stayed in AGENTS.md -- the front-end sense, and the four on a platform split living in exactly two places. Verified: every docs/ path named from code, from Cargo.toml or from another document exists; no `AGENTS.md` reference remains that points at moved content; `cargo fmt --all -- --check` and `cargo check -p oxidezap-plugin-abi` pass. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KxsJVCeKUx3xFiGM92sPn6
Seven findings; four fixed, three declined with a reason, and one of the
three because acting on it would have made the document wrong.
Fixed:
- docs/building.md carried the same command drift the second commit fixed
in AGENTS.md: `cargo fmt --all` without `--check`, and the workspace
clippy and test lines without `--all-features`. It now mirrors ci.yml
and says ci.yml is the authority. Its "see `xtask/` above" also became
docs/architecture.md, another reference the split had broken.
- docs/roadmap.md rendered "Retry , every press" — a line-wrap artifact
carried over from the original file.
- docs/gotchas.md's `only_this_user_can_write` now points at
docs/roadmap.md for what stands in for it on Windows. The review asked
for that qualification as though it were missing; it was not, but the
split had separated it from the claim, which is what made it look
missing and is this PR's to repair.
- docs/web.md said "A page cannot answer a call" a few paragraphs after
saying calls are "placed and answered". A real contradiction, and the
review proposed resolving it the wrong way -- weakening the correct
sentence to "placed and declined". The code settles it:
`platform::capabilities::calls_unavailable` returns `None` for an
own-session page that has an `RTCPeerConnection`, so a page places and
answers, and the "cannot answer" paragraph predates the browser relay.
It now reads as the history it is.
Declined:
- `/.cargo/config.toml` is not a filesystem-root path, it is this
repository's own convention for a root-relative one -- xtask/src/web.rs
and five other files write it that way.
- The ChromeDriver resolution in the browser-test snippet is pre-existing
and unrelated to the split; changing it would widen the PR.
- `cargo build -p url --profile web` was said to fail because `url` is not
a workspace member. Reproduced instead of argued, which is the rule this
very passage exists to state: cargo resolves it with no selection error
and compiles `url` at `opt-level=z` -- the level
`[profile.release.package.url]` names, under a profile whose own base is
`s` and whose table does not mention it. The paragraph is right, and it
is right for the documented reason.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxsJVCeKUx3xFiGM92sPn6
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All three Codex findings on 2c9e3ba are valid, and all three land on sentences this PR introduced rather than on relocated text -- which makes them the same failure the PR is about, committed while fixing it. - AGENTS.md said the two out-of-workspace directories each carry "its own CI job". `xtask/` does; `examples/` does not. Nothing in `.github/workflows/` builds either plugin, ci.yml's own comment says `cargo test --workspace` "compiles none of it, exactly as it compiles none of `examples/`", and the one test that loads a built module is `#[ignore]`d. Now says so, because "CI covers this" is the wrong thing to be wrong about. - docs/roadmap.md offered `grep -ro 'px(' crates/gui/src | wc -l` as the ceiling on spacing debt and claimed the legitimate matches live under `theme/`. Both halves are wrong: 51 of the 175 are GPUI's `.px(...)` padding method, correct whenever it is passed a metric, and bare `px()` is the right conversion for an intrinsic device-pixel size such as decoded media geometry. Replacing a stale number with a command is no improvement when the command measures the wrong set, so the entry now describes what actually counts -- a `px()` around a literal, outside `theme/` and outside tests -- and says to read the matches. - "A platform split lives in exactly two places" contradicted the layering three paragraphs above it, which says capability crates own their own. The body scoped it to transports; the bolded clause an agent skims did not, and `audio/src/web/`, `video/src/web/` and `session/src/exec/` are the counterexamples. Scoped in the lead, and it now names those three as the splits that correctly live elsewhere. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KxsJVCeKUx3xFiGM92sPn6
main gained #65, #67 and #68 while this branch was open. Only AGENTS.md conflicted, in one hunk: #68 added twenty lines to the shared-memory gotcha, describing Web Audio as the third crossing to hit the rule and the `clippy.toml` ban that now enforces it. Resolved by putting that prose where the entry now lives -- appended to the shared-memory gotcha in docs/gotchas.md, verbatim, all twenty lines checked present -- and keeping this branch's restructured AGENTS.md for the file itself. The `clippy.toml` ban did not stay only in the reference, though. "Do not write this spelling, and CI's `Test (web)` job fails you if you do" is a decision that changes what an agent may type, which is what the always-loaded file is for, so the shared-memory rule in AGENTS.md now names it and says where the rule runs. Everything else merged clean. main's own files are byte-identical to origin/main in the tree apart from two comment retargets this branch had already made (Cargo.toml's cache measurement now names docs/ci.md, its profile note docs/web.md). Worth recording: #67 raised the MSRV to 1.95 and nothing in these documents had to change, because none of them pins a toolchain version any more. That is the split doing its job on its first contact with a moving base. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KxsJVCeKUx3xFiGM92sPn6
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Six findings on the merge commit, and the first three are a mistake with
a shape worth naming: last round I corrected two claims in AGENTS.md and
left the relocated long-form saying the old thing. Splitting a document
means a correction now has two homes, and I only visited one.
- docs/architecture.md called `xtask/` "excluded from the workspace".
`exclude` names only `examples`; xtask is simply not in `members` and
carries its own `[workspace]`. Cargo's formal term points a maintainer
at the wrong edit.
- The same paragraph said CI runs xtask's tests "the way it runs the
example plugins'". It runs no such job — nothing in CI builds or tests
either example, and the real-module test is `#[ignore]`d.
- docs/gotchas.md still opened with the categorical "The platform split
lives in exactly two places", scoped to transports in AGENTS.md an hour
ago and not here. It now names `audio/src/web/`, `video/src/web/` and
`session/src/exec/` as the splits that correctly live elsewhere.
Three more, all pre-existing prose that had gone stale:
- docs/web.md said the browser video decoder "is only reachable attached
to an `oxidezapd`, which is where calls happen at all" -- the same
lineage as the "a page cannot answer a call" sentence fixed in 2c9e3ba,
and equally out of date: `video/call_unsupported.rs` takes a
`CallVideoFrame` and builds a `webcodecs::Decoder`.
- docs/ci.md's "Only `main` writes" is false for one workflow.
`web-bundle.yml`'s rust-cache step has a `key` and no `save-if`, and
`release.yml` calls it on a tag, so releases write entries too. The
invariant is the premise of every cache figure under it, so it now
carries the exception.
- The browser-test recipe could not run on a clean machine: it needs the
wasm target on *stable* (the nightly above it is the bundle's) and a
`wasm-bindgen-cli` matching Cargo.lock, and neither was mentioned.
That last one includes reversing a call I made earlier. I declined the
ChromeDriver lookup for scope; two reviewers have now landed on that same
recipe, and the second showed it is not a nit but the reason the block
does not work. `which chromedriver` returns nothing when `CHROMEWEBDRIVER`
names a directory that is not on `PATH`, so the recipe now joins the
binary and falls back, exactly as ci.yml does. Scope was the wrong reading:
a build instruction that cannot be followed is this PR's business, since
this PR is what moved it somewhere people will follow it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxsJVCeKUx3xFiGM92sPn6
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AGENTS.mdwas 2,429 lines / 168 KB, andCLAUDE.mdis@AGENTS.md— so all of it entered the context of every agent session before the first file was read. It is now 147 lines, and every line of the original prose survives indocs/.1. The split
Published guidance converges from both directions:
AGENTS.mdguides, found returns falling off past ~150 lines while inference cost rose 20–23% with no gain.The reasoning here is load-bearing — most gotchas exist because the obvious alternative was tried and failed silently — so none of it was deleted, only moved to where it is looked up by subject:
docs/architecture.md(crate map, theme, responsiveness),docs/building.md(every build beyond the common three),docs/ci.md(the library dependency, the cache budget),docs/gotchas.md(the reasoning),docs/web.md(the page),docs/roadmap.md(known gaps).2. Decisions stay, inventories get derived
The first pass kept a crate table and a command block. Checking them against the tree found several already wrong, which is the argument for not having them at all:
ci.ymlruns all three with--all-featureswhatsapp-rustcrates"Cargo.tomldeclares five directlypx(...)literals"grep -ro 'px('→ 175session/whatsapp/mod.rs"~3.7k"crates/gui/src/theme.rsxtask/"excluded"exclude— simply not a memberSo
AGENTS.mdnow opens by saying it holds decisions, not inventories, and each countable claim points at what answers it: the crate list atCargo.toml's members plus eachlib.rsheader, the flags at.github/workflows/ci.yml(with an explicit check there rather than copying from here), the task list atcargo xtask help. The crate table is replaced by the layering, which does not go stale when a crate is added.What stays inline is the dozen rules whose violation is silent and which no amount of reading derives: pinning the library crates individually by
rev, a colour literal, a missinguse<>,std::thread::spawn/tokio::time/spawn_blockingon wasm, dropping FTS5, a partial store wipe, a sharedArrayBufferViewcrossing into a browser API, no real PII in tests.3. Review found three more of the same kind — mine
Codex's second pass caught three claims this PR introduced, not relocated. Same failure, committed while fixing it:
examples/was said to have "its own CI job".xtask/does;examples/has none —ci.yml's own comment sayscargo test --workspace"compiles none of it, exactly as it compiles none ofexamples/", and the one test that loads a built plugin is#[ignore]d. Now stated plainly, because "CI covers this" is the wrong thing to be wrong about.docs/roadmap.mdoffered agrep -ro 'px('count as the ceiling on spacing debt. 51 of the 175 are GPUI's.px(...)padding method, correct whenever passed a metric, and barepx()is right for an intrinsic device-pixel size. Replacing a stale number with a command is no improvement when the command measures the wrong set.audio/src/web/,video/src/web/andsession/src/exec/are the counterexamples; the rule is about transports, and now says so in the clause an agent skims.Two other findings were declined and the reviewers verified and withdrew both:
-p urlresolves from the package graph (reproduced — it compiles atopt-level=z, the inheritance the passage demonstrates), and the leading/in/.cargo/config.tomlis this repo's own root-relative convention.4. Merged with main
maingained #65, #67 and #68 mid-review. OnlyAGENTS.mdconflicted, in one hunk: #68's twenty lines on Web Audio as the third crossing to hit the shared-memory rule. They now live indocs/gotchas.mdverbatim, and theclippy.tomlban they describe is surfaced in the always-loaded rule — "do not write this spelling, andTest (web)fails you if you do" is a decision, not a reference.#67 raised the MSRV to 1.95 and nothing in these documents had to change, because none of them pins a toolchain version any more.
Verification
commover sorted line sets reports only the lines deliberately rewritten. All 20 lines from Write the peer's audio through a block the browser will accept #68 checked present.AGENTS.mdnames is checked to exist.cargo fmt --all -- --checkpasses;cargo check -p oxidezap-plugin-abipasses.