The Usage block referenced [image_data] as a free variable; bind a
zeroed buffer and assert the round-trip. The features list also had
a stray newline-let token splitting "wavelet" across two lines —
collapse it back to a single bullet.

The READMEs all share the standard install/overlay snippet, but the
sh blocks lacked the "<!-- $MDX skip -->" directive. `dune test`
would shell out to `opam install` against the live switch, which
either prompts interactively or fails with a package conflict —
either way diffing as a test failure.

Bulk-add skip directives in front of every install/overlay block.
Also collapse the doubled "non-deterministic + skip" stack on three
READMEs (memtrace, ocaml-dpop, ocaml-pid1, ocaml-yaml, merlint) where
`skip` already implies the runtime is bypassed.

Pure formatting changes from `dune fmt`: doc comment placement moves
from above the binding to below it for `type`s, multi-line `match`
expressions collapse onto one line where they fit, and infix operator
applications pick up spaces (`Soup.($?)` -> `Soup.( $? )`). No
semantic changes.

Object combinators: [Object.mem] -> [Object.member], [Object.opt_mem]
-> [Object.opt_member], [Object.case_mem] -> [Object.case_member]. The
sibling submodules [Object.Mem] / [Object.Mems] become
[Object.Member] / [Object.Members]. RFC 8259 §4 calls these
"name/value pairs, referred to as the members", so mirror the spec
name rather than the shortened [mem].

[Object.finish] -> [Object.seal]. "Seal" reads as "close the map, no
more members added", which is what the operation does.

Value constructors/queries: [Value.mem] (function) -> [Value.member];
[Value.mem_find] -> [Value.member_key]; [Value.mem_names] ->
[Value.member_names]; [Value.mem_keys] -> [Value.member_keys].
[type mem = ...] -> [type member = ...]; [type object'] still points
at [member list].

Downstream (~80 files across slack, sbom, stripe, sigstore, requests,
claude, irmin, freebox) updated via perl-pie. dune build clean,
dune test ocaml-json clean.

[decompress] ignored its [~width]/[~height] arguments and trusted
whatever the bitstream header declared. A fuzz input of 5 bytes
decoded into a 5757x51873 stream, which drove [array_2d] to
allocate ~300M entries and parked [inverse_dwt_2d] in a multi-minute
loop.

Thread the expected dimensions through [decode_coefficients] and
fail with [invalid_arg] before allocating when they don't match the
header. The mli documents [~width]/[~height] as the expected output
size, so this only rejects malformed streams.

Fixes the fuzz-test failure surfaced by
[test_decompress_crash_safety] on input "\022}\202\161_".

Follow up to the module rename: update the remaining callers that
still referenced [Err] (library [claude.ml{,i}], [client.ml], the test
driver [test.ml]), and fix one stray [^ e] string concatenation in
hermest's CLI that needed [Json.Error.to_string e] now that
[Json.of_string] yields a structured error.

Warning 69 (unused-field, mutable-never-assigned). Four independent
record fields were flagged as mutable but the code only mutates their
referents in place, never rebinds the record slot itself:

- ocaml-wal/lib/wal.ml: [t.file] (the Eio file resource; methods call
Eio.File.pwrite_all etc., the slot is set once at open time).
- ocaml-block/lib/block.ml: [Memory.state.data] (the backing bytes,
written via Bytes.blit_string; [Bytes.t] is already mutable).
- ocaml-sse/lib/sse.ml: [Parser.t.data_buf] (a Buffer.t, written via
Buffer.add_*; the slot never changes).
- ocaml-zephyr/lib/zephyr.ml: drop [mode : Read | Write] entirely —
set at open-time, read nowhere. The open_read / open_write
constructors already distinguish the two call shapes, so mode
tracking was redundant.

Previously the eight git-x subcommands sat flat at top level (split,
check, fix, verify, filter-paths, split-commit, drop-commit, reword),
with 'split' ambiguous between the subtree split and the per-directory
commit split.

Regrouped into two namespaces that mirror the object they act on:

git-x tree
split (was: git-x split)
add (new — inject a standalone history under a prefix)
drop (was: git-x filter-paths)
check (was: git-x check)
fix (was: git-x fix)
verify (was: git-x verify)

git-x commit
split (was: git-x split-commit)
drop (was: git-x drop-commit)
reword (was: git-x reword)

Each subcommand lives in cmd_<group>_<verb>.{ml,mli}; cmd_tree.ml and
cmd_commit.ml are the Cmd.group wrappers. git_x.ml registers just the
two groups.

'tree add' is a thin wrapper over Git.Subtree.add, which already
existed in the library but had no CLI exposure. It accepts a ref (e.g.
FETCH_HEAD after 'git fetch URL REF') and a --prefix, then builds a
subtree-merge commit with the current user's git config identity.

Log source names are updated to match (git-x.tree.split,
git-x.tree.fix). The cram test under test/cram/tree_split.t is
updated to use the new 'git-x tree split' invocation throughout.

- Move every test case from test/test.ml into test/test_idc.ml,
drop the redundant test_ prefix on each (E325/E331), and reduce the
runner to a single Alcotest.run line (E600).
- idc.ml: rename make_2d -> array_2d and find_max_abs -> max_abs (E331).
- Replace the catch-all (with _ -> ()) in the fuzz decompress safety
test with Invalid_argument / Failure handlers (E311).
- Rename fuzz_compress.{ml,mli} to fuzz_idc.{ml,mli} and the fuzz
suite from "compress" to "idc" so E710/E720 see a corresponding
library module.

Generate .opam.template files with x-quality-* fields based on
detected package features:
- x-quality-build: has lib/ with .ml files
- x-quality-test: has test/ with .ml files
- x-quality-fuzz: has fuzz/ with .ml files
- x-quality-interop: has test/interop/ directory
- x-quality-cram: has test/*.t/ directories

These fields are picked up by dune's opam generation and will be
checked by merlint E910 for consistency.

Also: add fmt dep to ocaml-sse/lib/dune (Fmt.pf used without dep).

monopam quality — scans packages for quality features, caches by
git commit hash. 166 packages: build=163, test=162, fuzz=94,
interop=39, doc=42.

Standard vocabulary based on crates.io categories, erratique/opam
conventions, and monorepo domain coverage:

Org: org:blacksun
Domain: aerospace, codec, crypto, network, storage, git, merkle
Purpose: cli, test, bench, format, log, system
Protocol: ccsds, uslp, cop1, sdls, sle, atproto, tls, http, json, binary
Cross-cutting: eio, simulation, math, compression

Tags placed in dune-project (package ...) stanzas via (tags ...).
Propagated to .opam files by dune's opam generation.

ocaml-{erasure,viterbi,turbo,short-ldpc,rice,lfsr,ldpc,idc,hcomp}/lib/dune
and ocaml-crc/bench/dune, ocaml-xmlt/fuzz/dune all use Fmt.str without
depending on fmt.

112 files across the monorepo. Printf.sprintf → Fmt.str,
Printf.printf → Fmt.pr for consistent formatting library usage.

ocaml-idc (CCSDS 122.0-B):
- Implement CDF 9/7 lifting wavelet for lossy compression (was stubbed)
- 4-step lifting scheme with standard coefficients (α,β,γ,δ,K)
- Wavelet ID in header for format-aware decompression
- Tests: PSNR >40dB roundtrip, constant exact, 9/7 beats 5/3 on smooth

ocaml-hcomp (CCSDS 123.0-B):
- Fix 16-bit entropy coder truncation bug: escape values need bps+1 bits
(zigzag-mapped residuals can reach 2*(2^bps-1), caught by new fuzz test)
- 8 new tests: wire format (4 configs), spectral decorrelation, bps 1-16
- 2 new fuzz tests: roundtrip across all bps values, output length invariant

ocaml-rice (CCSDS 121.0-B):
- 9 new tests: wire format (5 exact byte checks), edge cases (4)
- 2 new fuzz tests: correlated data compresses well, determinism
- libaec interop test skeleton (test/interop/libaec/) — cross-validates
ocaml-rice against libaec via aec CLI, skips gracefully if not installed