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| Comment: | A node takes one run from a user holding R alone at a time, the others waiting until it ends, and the tree's r-senders.json caps files at 256M, so such runs cannot together exhaust the server's memory nor fill every clone with a share
Intent: an adversarial review of the check-ins of decisions 104 to 107 found, each confirmed, two gaps in OCX in the bounds within which a node takes a run from a user holding R alone (two more were in the Codex task's pattern and the session's steps, data outside the tree). First, nothing limited how many such runs ran at once: a run waited only while another run of its own process.user was in the node's care, and its sender picks process.user, so a sender naming a new user for each run could start any number; a node cannot cap memory (row 8 refuses memory) and each sandbox's /tmp is a tmpfs of no set size, so such runs together could exhaust the server's memory. Second, nothing limited the size of a file such a run shares, and each share lands in every clone that fetches it. The maintainer, 2026-10-22: "the contract on this box is as long as the development doesn't disrupt the server, let the agents go a bit nuts", and "don't change the design... make the design work." Runs that exhaust the server's memory, or shares that fill every clone, would disrupt it, so the bounds must hold; no new key or word. Runs an admin or setup sent are unchanged: no such run holds one back, and one holds no such run back. Expression: src/ocx/decisions.cr: Sender#alone?, a sender holding neither admin nor setup; Situation#r_busy; a LIFE row after the per-user one: a run whose sender is alone waits while r_busy, with the note "a run from a user holding R alone is in this node's care, which takes one such run at a time". src/ocx/care.cr: the node's one lock of such runs, r-alone.lock in its directory (ALONE), read by Node.r_busy? as busy? reads a user's; took? is public, as a watcher tries that lock under the node's lock. src/ocx/node/view.cr: the situation read from the node's directory, which rounds, status, run's dry run and the hand-on read, passes r_busy from that lock. src/ocx/watcher.cr: the watcher opens r-alone.lock beside its user's lock; each time it decides the run under the node's lock, before its workspace steps and again before started, waits_alone? takes that lock, without waiting, for a run that reads whose sender is alone, or finds it held already by the same file, and the decision reads whether another holds it, so the decision and the lock agree under one hold of the node's lock and nothing depends on timing; every take is non-blocking under the node's lock, so none can deadlock. The lock stays held for the run's whole care, its process's life, and is let go with the user's and the run's once it is over; then following hands on, under the node's lock, the first run of its user now to start and, after a run whose sender is alone, the first such run now to start (Watched.next_runs, which was next_run, one run), each read from the node's directory; src/ocx/hook.cr hands each to a watcher of its own. A watcher that finds the lock held writes nothing and hands on as after any run, so a run its brief hold turned away is not left waiting. r-senders.json: limits gain "files": "256M", which Bounds already enforces as a cap, so such a run states files within it, and the kernel ends a process writing a larger file budget. docs/protocol-v1.md, section 10's waiting row, adds such runs; USAGE.md, "Let an agent send runs", gives the file's files cap, a share among the files it bounds, and one such run at a time, keeping the file at 400 lines; HISTORY.md decision 108 records both, amending decision 75 and the file decision 105 shipped, quoting the box contract and naming the review's findings; GLOSSARY.md's Watcher says what it holds and hands on; docs/design/modules.json and its generated docs/design/modules.md say the same of src/ocx/care.cr and src/ocx/watcher.cr. A Codex task's pattern must now state a files limit within 256M, or a node refuses it, naming the limit. Review: Gemma (gemma4:31b) read the change six times (scratchpad gemma-r-run-one-at-a-time-1.txt to -6). First, that the lock is held for the whole run, which it called a risk, proposing it be let go while the process runs: wrong, as holding it for the run's care is what takes one such run at a time, as the user's lock is held, and the kernel lets go of a killed watcher's lock; that unlocking the run's lock inside watched interferes with its caller: wrong, as that unlock was there before, taking the run out of care before the hand-on; and that the explicit unlocks are redundant since the blocks close the files: wrong, as following runs inside those blocks and must read the locks free; as misreads, watched's comment now says each lock is held for the run's care and let go before following reads the directory. Second, a deadlock from opening r-alone.lock outside the user's lock: wrong, as File.open takes no lock and every take is non-blocking under the node's lock; as a misread, the open now says it takes nothing. Third, fourth and fifth, that the lock taken while deciding is let go once the decision, or prepared, returns, so a second run starts: wrong, as a flock stays held on its open file until unlocked or closed, prepared returns only once the process has ended, and the spec fails with r_busy forced false; as misreads, took? says a lock taken stays held, prepared's comment says it waits for the process to end, and the take is waits_alone?, named for what it does, rather than inside a function building the situation. Sixth, now reading the lock as held through the run, that the second decision re-locks the same file, fragile: wrong, as flock on a file already holding the lock succeeds, which took? says, and that decision finds a stop that came since; and that following reads the lock through a separate open while the ending watcher has not closed its file: wrong, as flock_unlock lets go at once, before following, and following and every take hold the node's lock, so a run handed on that another watcher beat waits under its own hold and is handed on again by that watcher. No finding held. Demonstrates: spec/ocx/watcher_spec.cr (two runs from a user holding R alone, of builder and coder, arriving together, both handed by one round; while the first runs, the second's watcher writes nothing and the node decides it waiting with the note; a run stone, holding setup, sent as tester starts and ends exited 0 meanwhile; once the first ends its next_runs is the second, which starts and ends exited 0; with r_busy forced false the second starts at once and the example fails; the case 26 example reads next_runs), spec/ocx/ending_spec.cr (case 33 hands on next_runs), spec/ocx/decisions_spec.cr (such a run waits with the note while r_busy, and runs setup or admin sent start; the shipped r-senders.json refuses no files limit and files 1G, naming the cap 256M, and takes a Codex task within it), src/ocx/decisions.cr, src/ocx/care.cr, src/ocx/node/view.cr, src/ocx/watcher.cr and src/ocx/hook.cr (the lock, the row, the hand-on), spec/guards/size_spec.cr (USAGE.md at 400 lines, src/ocx/watcher.cr 398), spec/guards/derivation_spec.cr (docs/design/modules.md as docs/design/modules.json generates it) and spec/guards/documents_spec.cr (the edited documents rendering with their links). crystal run ci.cr green: 483 examples, 0 failures. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QVpmCsBwVF3d4zhMHHDAxs |
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| User & Date: | opus-ocx2 2026-10-22 21:51:57.292 |
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2026-10-23
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| 00:51 |
send_runs, a new word needing the maintainer's approval: an admin gives a user R, or takes it away, every other letter as it was, from the OCX page by one press on a link naming the user, at the server's command line, or over MCP
Intent: the maintainer, 2026-10-22 and 23: "the Fossil UI really fights the "R"." and "i can only add R from the cli. i need a helper to add it from here.", here being OCX's web page on the served repository; with "Let me know when one click on `accept` is going to give me the functionality I'm seeking", "one link per ask isn't the ask", and the box contract, "as long as the development doesn't disrupt the server, let the agents go a bit nuts". R is a capability letter Fossil does not define, which OCX reads as "may send runs" (GLOSSARY.md, R; HISTORY.md decision 75). Users create makes for runs hold gio24R since 0cbe31dea0, and approve may give R to a login it makes; any other user, those made before among them, had R only from an admin at the server's command line, as Fossil's own user page may drop a letter Fossil does not define when that user is saved there. send_runs is a new word, flagged for the maintainer's approval here, in GLOSSARY.md's R entry, USAGE.md and HISTORY.md decision 109, as other new words were; no protocol word changes, and R alone still allows only what each node's owner allows in r-senders.json. Expression: src/ocx/commands/send_runs.cr: SendRunsCommand, send_runs USER [--off], in the Logins group, needing admin (a, which setup holds), offered at every entry point: on the served repository named outright it refuses one of Fossil's own users (Logins::RESERVED: nobody, anonymous, reader, developer), whose capabilities OCX never changes, before any read; reads the letters the user holds of its own (ReadOwnCapabilities, Place#own_capabilities), refusing a user the repository lacks; sets them, R added at the end or every R taken out, every other letter as it was, through Fossil's user command (SetOwnCapabilities, Place#set_capabilities), and sets nothing when they already say what is asked; and answers the user's capabilities as receipt reads them, inherited ones included (ReadCapabilities), with a note when the user holds admin or setup, which send any run with or without R, so R changes nothing it may do, or when, R taken away, one of Fossil's own users still lends it R. Its CGI page is the generic one: a GET of send_runs?user=NAME shows its dry run with the form holding the user, and a change runs only from a POST whose Referer is this site's own page, as approve and accept take one, so one press adds R. src/ocx/commands.cr requires it; src/ocx/command.cr: the Logins group's title adds "or let one send runs"; src/ocx/commands/logins.cr: RESERVED's comment says send_runs never changes those users. USAGE.md: a row of the tools table, and "Let an agent send runs" says how, the link, the command and the MCP call, that it answers as receipt reads, and that Fossil's own Users page may drop R when that user is saved there, two sentences sharing a line so the file stays at 400 lines; GLOSSARY.md's R entry names the tool; SCENARIOS.md, the build and CI scenarios' first steps give R with send_runs; HISTORY.md decision 109 quotes the maintainer; docs/interfaces.md, a row; docs/survey/functionality.json, a behavior; docs/design/modules.json and its generated docs/design/modules.md, the module. Review: Gemma (gemma4:31b) read the change eight times (scratchpad gemma-send-runs-1.txt to -8.txt), each finding of docs/interfaces.md's new row, none of the code. First, that it refused Fossil's own users "before reading anything" yet read the letters: a misread, as the read is of any other user; the row was reworded. Second, that the row did not say what the note says: a misread of the intent, which the row now follows, saying each note's words. Third, that refusing "reading nothing" did not name why: a misread; the row now names the refusal. Fourth, proposing as its fix the words the row already had, and that the note for a user holding admin or setup should come only when R is added: wrong, as the row said so already, and R taken away from such a user changes nothing it may do either; the intent now says the note holds both ways. Fifth to seventh, that "reads nothing", then "without reading the repository", then "before any read" claimed every refusal is made without a read: misreads, each answered by rewording, until the row names both refusals in one clause, the order being the spec's to show (a refusal of Fossil's own users performs no operation). Eighth: no defects. No finding held. Demonstrates: spec/ocx/send_runs_spec.cr (a dry run lists read_own_capabilities, set_own_capabilities and read_capabilities and sets nothing; send_runs adds R to a user's own iohzjkrnw24, answering its capabilities as receipt reads them; holding R already, nothing is set; off takes only R away, and off again sets nothing; a user holding setup is given R with the note that it changes nothing that user may do; R lent by reader, in a fixture, stays once taken away, the note saying so; refused, each naming why and changing nothing: a user the repository lacks, each of nobody, anonymous, reader and developer before any operation, and a caller holding check-in but not admin, while admin alone is enough; on the page a GET of send_runs?user=lab-2 shows its dry run with the form holding lab-2 and an off box, changing nothing, a GET asking for JSON and a POST from another site's page or from none are refused, a viewer lacking admin is refused, and a POST from its own page adds R, and with off takes it away; the command line lists it, says send_runs USER [--off] [--dry-run], and runs it on the served repository named outright; MCP lists ocx_send_runs with user, off and dry_run and needing a (admin), and a call takes R away), spec/ocx/dry_run_spec.cr (its dry run changes nothing, among every tool's), spec/ocx/command_spec.cr (every tool's example answers as it says, send_runs among the names), spec/ocx/mcp_spec.cr (MCP offers ocx_send_runs, the one tool of the Logins group it offers), src/ocx/commands/send_runs.cr, src/ocx/commands.cr, src/ocx/command.cr and src/ocx/commands/logins.cr (the tool, its require, the group's title, RESERVED's comment), spec/guards/size_spec.cr (USAGE.md at 400 lines), spec/guards/deliberation_spec.cr and spec/guards/derivation_spec.cr (src/ocx/commands/send_runs.cr designed in docs/design/modules.json, and docs/design/modules.md as it generates it), spec/guards/survey_spec.cr (the new file and spec owned by a behavior), spec/guards/interfaces_spec.cr (the row's specs exist) and spec/guards/documents_spec.cr (the edited documents rendering with their links). crystal run ci.cr green: 487 examples, 0 failures. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QVpmCsBwVF3d4zhMHHDAxs check-in: 86190c5301 user: opus-ocx2 tags: agent-tools | |
|
2026-10-22
| ||
| 21:51 |
A node takes one run from a user holding R alone at a time, the others waiting until it ends, and the tree's r-senders.json caps files at 256M, so such runs cannot together exhaust the server's memory nor fill every clone with a share
Intent: an adversarial review of the check-ins of decisions 104 to 107 found, each confirmed, two gaps in OCX in the bounds within which a node takes a run from a user holding R alone (two more were in the Codex task's pattern and the session's steps, data outside the tree). First, nothing limited how many such runs ran at once: a run waited only while another run of its own process.user was in the node's care, and its sender picks process.user, so a sender naming a new user for each run could start any number; a node cannot cap memory (row 8 refuses memory) and each sandbox's /tmp is a tmpfs of no set size, so such runs together could exhaust the server's memory. Second, nothing limited the size of a file such a run shares, and each share lands in every clone that fetches it. The maintainer, 2026-10-22: "the contract on this box is as long as the development doesn't disrupt the server, let the agents go a bit nuts", and "don't change the design... make the design work." Runs that exhaust the server's memory, or shares that fill every clone, would disrupt it, so the bounds must hold; no new key or word. Runs an admin or setup sent are unchanged: no such run holds one back, and one holds no such run back. Expression: src/ocx/decisions.cr: Sender#alone?, a sender holding neither admin nor setup; Situation#r_busy; a LIFE row after the per-user one: a run whose sender is alone waits while r_busy, with the note "a run from a user holding R alone is in this node's care, which takes one such run at a time". src/ocx/care.cr: the node's one lock of such runs, r-alone.lock in its directory (ALONE), read by Node.r_busy? as busy? reads a user's; took? is public, as a watcher tries that lock under the node's lock. src/ocx/node/view.cr: the situation read from the node's directory, which rounds, status, run's dry run and the hand-on read, passes r_busy from that lock. src/ocx/watcher.cr: the watcher opens r-alone.lock beside its user's lock; each time it decides the run under the node's lock, before its workspace steps and again before started, waits_alone? takes that lock, without waiting, for a run that reads whose sender is alone, or finds it held already by the same file, and the decision reads whether another holds it, so the decision and the lock agree under one hold of the node's lock and nothing depends on timing; every take is non-blocking under the node's lock, so none can deadlock. The lock stays held for the run's whole care, its process's life, and is let go with the user's and the run's once it is over; then following hands on, under the node's lock, the first run of its user now to start and, after a run whose sender is alone, the first such run now to start (Watched.next_runs, which was next_run, one run), each read from the node's directory; src/ocx/hook.cr hands each to a watcher of its own. A watcher that finds the lock held writes nothing and hands on as after any run, so a run its brief hold turned away is not left waiting. r-senders.json: limits gain "files": "256M", which Bounds already enforces as a cap, so such a run states files within it, and the kernel ends a process writing a larger file budget. docs/protocol-v1.md, section 10's waiting row, adds such runs; USAGE.md, "Let an agent send runs", gives the file's files cap, a share among the files it bounds, and one such run at a time, keeping the file at 400 lines; HISTORY.md decision 108 records both, amending decision 75 and the file decision 105 shipped, quoting the box contract and naming the review's findings; GLOSSARY.md's Watcher says what it holds and hands on; docs/design/modules.json and its generated docs/design/modules.md say the same of src/ocx/care.cr and src/ocx/watcher.cr. A Codex task's pattern must now state a files limit within 256M, or a node refuses it, naming the limit. Review: Gemma (gemma4:31b) read the change six times (scratchpad gemma-r-run-one-at-a-time-1.txt to -6). First, that the lock is held for the whole run, which it called a risk, proposing it be let go while the process runs: wrong, as holding it for the run's care is what takes one such run at a time, as the user's lock is held, and the kernel lets go of a killed watcher's lock; that unlocking the run's lock inside watched interferes with its caller: wrong, as that unlock was there before, taking the run out of care before the hand-on; and that the explicit unlocks are redundant since the blocks close the files: wrong, as following runs inside those blocks and must read the locks free; as misreads, watched's comment now says each lock is held for the run's care and let go before following reads the directory. Second, a deadlock from opening r-alone.lock outside the user's lock: wrong, as File.open takes no lock and every take is non-blocking under the node's lock; as a misread, the open now says it takes nothing. Third, fourth and fifth, that the lock taken while deciding is let go once the decision, or prepared, returns, so a second run starts: wrong, as a flock stays held on its open file until unlocked or closed, prepared returns only once the process has ended, and the spec fails with r_busy forced false; as misreads, took? says a lock taken stays held, prepared's comment says it waits for the process to end, and the take is waits_alone?, named for what it does, rather than inside a function building the situation. Sixth, now reading the lock as held through the run, that the second decision re-locks the same file, fragile: wrong, as flock on a file already holding the lock succeeds, which took? says, and that decision finds a stop that came since; and that following reads the lock through a separate open while the ending watcher has not closed its file: wrong, as flock_unlock lets go at once, before following, and following and every take hold the node's lock, so a run handed on that another watcher beat waits under its own hold and is handed on again by that watcher. No finding held. Demonstrates: spec/ocx/watcher_spec.cr (two runs from a user holding R alone, of builder and coder, arriving together, both handed by one round; while the first runs, the second's watcher writes nothing and the node decides it waiting with the note; a run stone, holding setup, sent as tester starts and ends exited 0 meanwhile; once the first ends its next_runs is the second, which starts and ends exited 0; with r_busy forced false the second starts at once and the example fails; the case 26 example reads next_runs), spec/ocx/ending_spec.cr (case 33 hands on next_runs), spec/ocx/decisions_spec.cr (such a run waits with the note while r_busy, and runs setup or admin sent start; the shipped r-senders.json refuses no files limit and files 1G, naming the cap 256M, and takes a Codex task within it), src/ocx/decisions.cr, src/ocx/care.cr, src/ocx/node/view.cr, src/ocx/watcher.cr and src/ocx/hook.cr (the lock, the row, the hand-on), spec/guards/size_spec.cr (USAGE.md at 400 lines, src/ocx/watcher.cr 398), spec/guards/derivation_spec.cr (docs/design/modules.md as docs/design/modules.json generates it) and spec/guards/documents_spec.cr (the edited documents rendering with their links). crystal run ci.cr green: 483 examples, 0 failures. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QVpmCsBwVF3d4zhMHHDAxs check-in: 3869da228e user: opus-ocx2 tags: agent-tools | |
| 20:31 |
A run from a user holding R alone must have a sandbox that ends with the node, and share only under a name holding $$run$$, so its wall and a stop reach every process of it and it replaces no unversioned file but its own
Intent: an adversarial review of 0cbe31dea0, e3e8872a5e and 63fc6def93 found, each confirmed, two ways a run from a user holding R went past the bounds its node's owner sets in r-senders.json. First, setting its sandbox's ends_with_node to false, it escaped its wall and its stop: the node then leaves out bubblewrap's --die-with-parent (src/ocx/launch.cr), and the wall's timeout and a stop end only bubblewrap's outer process, so what runs inside runs on (the review's run with a 3 s wall ran 41 s); the wall r-senders.json caps bounded nothing, and such runs could pile up on the server. Second, it could replace any unversioned file of the served repository: the node shares each file with fossil uv add FILE --as NAME under the name the run gives (src/ocx/node/sharing.cr), and the bounds checked only that a share's path held no `..`. The maintainer, 2026-10-22: "the contract on this box is as long as the development doesn't disrupt the server, let the agents go a bit nuts", and "don't change the design... make the design work." Runs outliving their wall and stop, or replacing the server's files, would disrupt the server, so the bounds within which agents may go a bit nuts must hold; no new key or word. Runs an admin or setup sent are unchanged. Expression: src/ocx/bounds.cr: Bounds.wider refuses a run from a user holding R alone whose sandbox's ends_with_node is false, the note naming "a sandbox whose ends_with_node is false"; and one with a share whose name (as) does not hold $$run$$, the run's own hash, which no other file's name holds, as a directory step's path must end in it (decision 75), the note naming the share. The name is read as Values.fill fills it, through Values.named, the array of whole names it fills, matched left to right, none overlapping: $$user$$run$$, whose text holds $$run$$, fills the user's name and run$$, no hash, and is refused; the module comment and RUN's say both rules. Tried on this host through Launch.plan and Launch.run, a scratch run whose program left a child behind (sh -c "sleep 20 & sleep 20") under a 3 s wall ended after 3.0 s with ends_with_node true, and after 20.0 s, the child's whole sleep, with it false. docs/protocol-v1.md, section 11, row 1's list names both; USAGE.md, "Let an agent send runs", says both on the line that lists what such a run does, keeping the file at 400 lines; HISTORY.md decision 107 records it, amending decision 75, quoting the box contract and naming the review's two findings; docs/backlog.md's row on stops of a sandbox that does not end with the node adds the wall's 20 s and the refusal; docs/design/modules.json and its generated docs/design/modules.md name both in src/ocx/bounds.cr's purpose. The tree's r-senders.json needs no change; the run/codex and run/claude patterns on the server already end with the node and share nothing. Review: Gemma (gemma4:31b) read the change three times (scratchpad gemma-r-run-bounds-1.txt to -3). Its first reading said Values.named returns a map whose keys, for $$user$$run$$, include run, so that name passes: wrong, as Values.named is String#scan's array of names, whose matches never overlap, so $$user$$ takes the $$ before run and the array is ["user"], and the spec refuses that name; as a misread, the comment now says what the array is and gives that example. Its second said a placeholder holding the text run, such as $$run_extra$$, passes, and proposed s.name.includes?(RUN): wrong, as Array#includes? compares whole elements, so ["run_extra"] does not include "run" (and a value never set is refused by row 3 besides), and its fix is the textual check that $$user$$run$$ passes; as a misread, the comment now says "the array of whole names" and "the element run". Its third found nothing, saying the logic is sound and the spec covers the edge cases. No finding held. Demonstrates: spec/ocx/decisions_spec.cr (a run a user holding R sent whose sandbox's ends_with_node is false is refused, naming it, and started when an admin sent it; a share named builds/$$run$$/x is taken, and ocx2-release.tar, builds/$$user$$/x and $$user$$run$$ are refused, naming the share, and ocx2-release.tar started when an admin sent it; the earlier examples of the bounds unchanged), src/ocx/bounds.cr (the two refusals), spec/guards/size_spec.cr (USAGE.md at 400 lines, src/ocx/bounds.cr 129), spec/guards/derivation_spec.cr (docs/design/modules.md as docs/design/modules.json generates it) and spec/guards/documents_spec.cr (the edited documents rendering with their links). crystal run ci.cr green: 481 examples, 0 failures. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QVpmCsBwVF3d4zhMHHDAxs check-in: 8ffc23191e user: opus-ocx2 tags: agent-tools | |